diff --git a/Cargo.lock b/Cargo.lock
index 967f78829d1..286fb644bfa 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -538,7 +538,7 @@ dependencies = [
  "fnv",
  "font-kit",
  "gfx",
- "gleam 0.12.1",
+ "gleam 0.11.0",
  "half",
  "ipc-channel",
  "log",
@@ -718,9 +718,9 @@ dependencies = [
 
 [[package]]
 name = "cmake"
-version = "0.1.44"
+version = "0.1.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e56268c17a6248366d66d4a47a3381369d068cce8409bb1716ed77ea32163bb"
+checksum = "3c84c596dcf125d6781f58e3f4254677ec2a6d8aa56e8501ac277100990b3229"
 dependencies = [
  "cc",
 ]
@@ -813,7 +813,7 @@ dependencies = [
  "embedder_traits",
  "euclid",
  "gfx_traits",
- "gleam 0.12.1",
+ "gleam 0.11.0",
  "image",
  "ipc-channel",
  "keyboard-types",
@@ -987,19 +987,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "core-graphics"
-version = "0.22.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6082396a349fa49674ba1bda4077332a18bf150e8fa75745ece07085e29a113"
-dependencies = [
- "bitflags",
- "core-foundation 0.9.0",
- "core-graphics-types",
- "foreign-types",
- "libc",
-]
-
 [[package]]
 name = "core-graphics-types"
 version = "0.1.0"
@@ -1014,12 +1001,24 @@ dependencies = [
 
 [[package]]
 name = "core-text"
-version = "19.0.0"
+version = "13.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04dfae50af11e72657fe7174cddb1ecddc5398037f7f6f39533ad69207c9a4e2"
+checksum = "db84654ad95211c082cf9795f6f83dc17d0ae6c985ac1b906369dc7384ed346d"
 dependencies = [
- "core-foundation 0.9.0",
- "core-graphics 0.22.0",
+ "core-foundation 0.6.4",
+ "core-graphics 0.17.3",
+ "foreign-types",
+ "libc",
+]
+
+[[package]]
+name = "core-text"
+version = "15.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "131b3fd1f8bd5db9f2b398fa4fdb6008c64afc04d447c306ac2c7e98fba2a61d"
+dependencies = [
+ "core-foundation 0.7.0",
+ "core-graphics 0.19.0",
  "foreign-types",
  "libc",
 ]
@@ -1212,6 +1211,16 @@ dependencies = [
  "ws",
 ]
 
+[[package]]
+name = "deflate"
+version = "0.7.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "707b6a7b384888a70c8d2e8650b3e60170dfc6a67bb4aa67b6dfca57af4bedb4"
+dependencies = [
+ "adler32",
+ "byteorder",
+]
+
 [[package]]
 name = "deflate"
 version = "0.8.6"
@@ -1572,15 +1581,15 @@ checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
 [[package]]
 name = "font-kit"
-version = "0.10.0"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f9042cb45150fb2b2a012fc03d0f1d2071f18e90397b9d2a5ec8ade8464bf20"
+checksum = "76ab2cdc792b545c49acb23aafa1cdc9381ea96140741f10bac596fd1bd1aa4f"
 dependencies = [
  "bitflags",
  "byteorder",
- "core-foundation 0.9.0",
- "core-graphics 0.22.0",
- "core-text",
+ "core-foundation 0.7.0",
+ "core-graphics 0.19.0",
+ "core-text 15.0.0",
  "dirs",
  "dwrote",
  "float-ord",
@@ -1622,23 +1631,12 @@ checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 
 [[package]]
 name = "freetype"
-version = "0.7.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bee38378a9e3db1cc693b4f88d166ae375338a0ff75cb8263e1c601d51f35dc6"
+checksum = "11926b2b410b469d0e9399eca4cbbe237a9ef02176c485803b29216307e8e028"
 dependencies = [
- "freetype-sys",
  "libc",
-]
-
-[[package]]
-name = "freetype-sys"
-version = "0.13.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a37d4011c0cc628dfa766fcc195454f4b068d7afdc2adfd28861191d866e731a"
-dependencies = [
- "cmake",
- "libc",
- "pkg-config",
+ "servo-freetype-sys",
 ]
 
 [[package]]
@@ -1849,9 +1847,9 @@ dependencies = [
  "app_units",
  "bitflags",
  "byteorder",
- "core-foundation 0.9.0",
- "core-graphics 0.22.0",
- "core-text",
+ "core-foundation 0.7.0",
+ "core-graphics 0.19.0",
+ "core-text 15.0.0",
  "dwrote",
  "euclid",
  "fnv",
@@ -2080,9 +2078,9 @@ dependencies = [
 
 [[package]]
 name = "gleam"
-version = "0.12.1"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fdef5b9df6d3a261b80a5ac55e13bf93945725df2463c1b0a2e5a527dce0d37"
+checksum = "d9a13b5bb12ab457c15400b43cbba5971df5c1898b6a9c30cc8c52cb01baa112"
 dependencies = [
  "gl_generator 0.14.0",
 ]
@@ -2471,13 +2469,13 @@ checksum = "63d68db75012a85555434ee079e7e6337931f87a087ab2988becbadf64673a7f"
 
 [[package]]
 name = "harfbuzz-sys"
-version = "0.5.0"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf8c27ca13930dc4ffe474880040fe9e0f03c2121600dc9c95423624cab3e467"
+checksum = "212d74cab8498b2d15700b694fb38f77562869d05e1f8b602dd05221a1ca2d63"
 dependencies = [
  "cc",
- "core-graphics 0.22.0",
- "core-text",
+ "core-graphics 0.17.3",
+ "core-text 13.3.2",
  "foreign-types",
  "freetype",
  "pkg-config",
@@ -2722,7 +2720,7 @@ dependencies = [
  "num-iter",
  "num-rational 0.3.0",
  "num-traits",
- "png",
+ "png 0.16.6",
  "scoped_threadpool",
  "tiff",
 ]
@@ -2748,6 +2746,15 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "inflate"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1cdb29978cc5797bd8dcc8e5bf7de604891df2a8dc576973d71a281e916db2ff"
+dependencies = [
+ "adler32",
+]
+
 [[package]]
 name = "input_buffer"
 version = "0.3.1"
@@ -3191,7 +3198,7 @@ dependencies = [
  "gaol",
  "gfx",
  "gfx_traits",
- "gleam 0.12.1",
+ "gleam 0.11.0",
  "gstreamer",
  "ipc-channel",
  "keyboard-types",
@@ -4175,7 +4182,7 @@ dependencies = [
 [[package]]
 name = "peek-poke"
 version = "0.2.0"
-source = "git+https://github.com/servo/webrender#0bf15cbdbda530f733511f169194439e197e0f40"
+source = "git+https://github.com/jdm/webrender?branch=crash-backtrace#34d968adeda2e06b057a13d14a88df5766b38eda"
 dependencies = [
  "euclid",
  "peek-poke-derive",
@@ -4184,7 +4191,7 @@ dependencies = [
 [[package]]
 name = "peek-poke-derive"
 version = "0.2.1"
-source = "git+https://github.com/servo/webrender#0bf15cbdbda530f733511f169194439e197e0f40"
+source = "git+https://github.com/jdm/webrender?branch=crash-backtrace#34d968adeda2e06b057a13d14a88df5766b38eda"
 dependencies = [
  "proc-macro2 1.0.17",
  "quote 1.0.2",
@@ -4329,6 +4336,18 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "png"
+version = "0.15.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef859a23054bbfee7811284275ae522f0434a3c8e7f4b74bd4a35ae7e1c4a283"
+dependencies = [
+ "bitflags",
+ "crc32fast",
+ "deflate 0.7.20",
+ "inflate",
+]
+
 [[package]]
 name = "png"
 version = "0.16.6"
@@ -4337,7 +4356,7 @@ checksum = "c150bf7479fafe3dd8740dbe48cc33b2a3efb7b0fe3483aced8bbc39f6d0238d"
 dependencies = [
  "bitflags",
  "crc32fast",
- "deflate",
+ "deflate 0.8.6",
  "miniz_oxide 0.3.7",
 ]
 
@@ -4547,14 +4566,15 @@ checksum = "a871f1e45a3a3f0c73fb60343c811238bb5143a81642e27c2ac7aac27ff01a63"
 
 [[package]]
 name = "raqote"
-version = "0.8.1-alpha.0"
-source = "git+https://github.com/jdm/raqote?branch=fkup#ff5d2d1aa7813dbcacb0d028cf7d17c82a35d9d4"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "501c19caa439857ed7bea975fa4c3c10ee9a24e33c2640030c3ac14b58f39f77"
 dependencies = [
  "euclid",
  "font-kit",
  "lyon_geom 0.15.0",
  "pathfinder_geometry",
- "png",
+ "png 0.15.3",
  "sw-composite",
  "typed-arena",
 ]
@@ -5110,9 +5130,9 @@ dependencies = [
 
 [[package]]
 name = "servo-fontconfig"
-version = "0.5.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b47fef69c52fb55838c756949c60595f0b855daa4e82fc52ad99ff3e03e2c70"
+checksum = "a088f8d775a5c5314aae09bd77340bc9c67d72b9a45258be34c83548b4814cd9"
 dependencies = [
  "libc",
  "servo-fontconfig-sys",
@@ -5120,12 +5140,22 @@ dependencies = [
 
 [[package]]
 name = "servo-fontconfig-sys"
-version = "5.1.0"
+version = "4.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e36b879db9892dfa40f95da1c38a835d41634b825fbd8c4c418093d53c24b388"
+checksum = "62b3e166450f523f4db06c14f02a2d39e76d49b5d8cbd224338d93e3595c156c"
 dependencies = [
  "expat-sys",
- "freetype-sys",
+ "pkg-config",
+ "servo-freetype-sys",
+]
+
+[[package]]
+name = "servo-freetype-sys"
+version = "4.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c4ccb6d0d32d277d3ef7dea86203d8210945eb7a45fba89dd445b3595dd0dfc"
+dependencies = [
+ "cmake",
  "pkg-config",
 ]
 
@@ -6436,9 +6466,12 @@ dependencies = [
 
 [[package]]
 name = "unicode-script"
-version = "0.5.2"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79bf4d5fc96546fdb73f9827097810bbda93b11a6770ff3a54e1f445d4135787"
+checksum = "09f03ad95feb4fde244d79985bfd79eb34ff2702fedb441d2ba3f4ff813efd19"
+dependencies = [
+ "harfbuzz-sys",
+]
 
 [[package]]
 name = "unicode-segmentation"
@@ -6786,23 +6819,24 @@ dependencies = [
 [[package]]
 name = "webrender"
 version = "0.61.0"
-source = "git+https://github.com/servo/webrender#0bf15cbdbda530f733511f169194439e197e0f40"
+source = "git+https://github.com/jdm/webrender?branch=crash-backtrace#34d968adeda2e06b057a13d14a88df5766b38eda"
 dependencies = [
+ "backtrace",
  "base64 0.10.1",
  "bincode",
  "bitflags",
  "build-parallel",
  "byteorder",
  "cfg-if",
- "core-foundation 0.9.0",
- "core-graphics 0.22.0",
- "core-text",
+ "core-foundation 0.7.0",
+ "core-graphics 0.19.0",
+ "core-text 15.0.0",
  "cstr",
  "dwrote",
  "euclid",
  "freetype",
  "fxhash",
- "gleam 0.12.1",
+ "gleam 0.11.0",
  "glslopt",
  "image",
  "lazy_static",
@@ -6815,11 +6849,11 @@ dependencies = [
  "ron",
  "serde",
  "serde_json",
+ "sig",
  "smallvec 1.4.1",
  "svg_fmt",
  "time",
  "tracy-rs",
- "uuid",
  "webrender_api",
  "webrender_build",
  "wr_malloc_size_of",
@@ -6829,13 +6863,13 @@ dependencies = [
 [[package]]
 name = "webrender_api"
 version = "0.61.0"
-source = "git+https://github.com/servo/webrender#0bf15cbdbda530f733511f169194439e197e0f40"
+source = "git+https://github.com/jdm/webrender?branch=crash-backtrace#34d968adeda2e06b057a13d14a88df5766b38eda"
 dependencies = [
  "app_units",
  "bitflags",
  "byteorder",
- "core-foundation 0.9.0",
- "core-graphics 0.22.0",
+ "core-foundation 0.7.0",
+ "core-graphics 0.19.0",
  "derive_more",
  "euclid",
  "malloc_size_of_derive",
@@ -6850,7 +6884,7 @@ dependencies = [
 [[package]]
 name = "webrender_build"
 version = "0.0.1"
-source = "git+https://github.com/servo/webrender#0bf15cbdbda530f733511f169194439e197e0f40"
+source = "git+https://github.com/jdm/webrender?branch=crash-backtrace#34d968adeda2e06b057a13d14a88df5766b38eda"
 dependencies = [
  "bitflags",
  "lazy_static",
@@ -7029,7 +7063,7 @@ dependencies = [
 [[package]]
 name = "wr_malloc_size_of"
 version = "0.0.1"
-source = "git+https://github.com/servo/webrender#0bf15cbdbda530f733511f169194439e197e0f40"
+source = "git+https://github.com/jdm/webrender?branch=crash-backtrace#34d968adeda2e06b057a13d14a88df5766b38eda"
 dependencies = [
  "app_units",
  "euclid",
diff --git a/Cargo.toml b/Cargo.toml
index 79b5a962adf..4dbe63e439c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,5 +32,7 @@ mio = { git = "https://github.com/servo/mio.git", branch = "servo-mio-0.6.22" }
 # https://github.com/rust-lang/backtrace-rs/pull/363/
 backtrace = { git = "https://github.com/servo/backtrace-rs", branch = "uwp-fix" }
 
-[patch."https://github.com/jrmuizel/raqote"]
-raqote = { git = "https://github.com/jdm/raqote", branch = "fkup" }
+# https://github.com/servo/servo/issues/27039#issuecomment-654400150
+[patch."https://github.com/servo/webrender"]
+webrender = { git = "https://github.com/jdm/webrender", branch = "crash-backtrace" }
+webrender_api = { git = "https://github.com/jdm/webrender", branch = "crash-backtrace" }
diff --git a/components/canvas/Cargo.toml b/components/canvas/Cargo.toml
index e2789742ac7..2281ea30242 100644
--- a/components/canvas/Cargo.toml
+++ b/components/canvas/Cargo.toml
@@ -22,17 +22,17 @@ canvas_traits = { path = "../canvas_traits" }
 crossbeam-channel = "0.4"
 cssparser = "0.27"
 euclid = "0.20"
-font-kit = "0.10"
+font-kit = "0.7"
 fnv = "1.0"
 gfx = { path = "../gfx" }
-gleam = "0.12"
+gleam = "0.11"
 half = "1"
 ipc-channel = "0.14"
 log = "0.4"
 lyon_geom = "0.14"
 num-traits = "0.2"
 pixels = { path = "../pixels" }
-raqote = { git = "https://github.com/jrmuizel/raqote", features = ["text"] }
+raqote = { version = "0.8", features = ["text"] }
 servo_arc = { path = "../servo_arc" }
 servo_config = { path = "../config" }
 sparkle = "0.1.25"
diff --git a/components/compositing/Cargo.toml b/components/compositing/Cargo.toml
index 048344af294..0d4fc881921 100644
--- a/components/compositing/Cargo.toml
+++ b/components/compositing/Cargo.toml
@@ -21,7 +21,7 @@ crossbeam-channel = "0.4"
 embedder_traits = { path = "../embedder_traits" }
 euclid = "0.20"
 gfx_traits = { path = "../gfx_traits" }
-gleam = { version = "0.12", optional = true }
+gleam = { version = "0.11", optional = true }
 image = "0.23"
 ipc-channel = "0.14"
 keyboard-types = "0.5"
diff --git a/components/gfx/Cargo.toml b/components/gfx/Cargo.toml
index 0d96a7ed783..0ffa87835e1 100644
--- a/components/gfx/Cargo.toml
+++ b/components/gfx/Cargo.toml
@@ -20,7 +20,7 @@ euclid = "0.20"
 fnv = "1.0"
 fontsan = { git = "https://github.com/servo/fontsan" }
 gfx_traits = { path = "../gfx_traits" }
-harfbuzz-sys = "0.5"
+harfbuzz-sys = "0.3"
 ipc-channel = "0.14"
 lazy_static = "1"
 libc = "0.2"
@@ -37,22 +37,22 @@ style = { path = "../style", features = ["servo"] }
 time = "0.1.12"
 ucd = "0.1.1"
 unicode-bidi = { version = "0.3", features = ["with_serde"] }
-unicode-script = "0.5"
+unicode-script = { version = "0.3", features = ["harfbuzz"] }
 webrender_api = { git = "https://github.com/servo/webrender" }
 xi-unicode = "0.1.0"
 
 [target.'cfg(target_os = "macos")'.dependencies]
 byteorder = "1.0"
-core-foundation = "0.9"
-core-graphics = "0.22"
-core-text = "19.0"
+core-foundation = "0.7"
+core-graphics = "0.19"
+core-text = "15.0"
 
 [target.'cfg(any(target_os = "linux", target_os = "android"))'.dependencies]
-freetype = "0.7"
+freetype = "0.4"
 servo_allocator = { path = "../allocator" }
 
 [target.'cfg(target_os = "linux")'.dependencies]
-servo-fontconfig = "0.5"
+servo-fontconfig = "0.4"
 
 [target.'cfg(target_os = "android")'.dependencies]
 xml-rs = "0.8"
diff --git a/components/gfx/text/shaping/harfbuzz.rs b/components/gfx/text/shaping/harfbuzz.rs
index ef49bb32e68..47cf337011b 100644
--- a/components/gfx/text/shaping/harfbuzz.rs
+++ b/components/gfx/text/shaping/harfbuzz.rs
@@ -191,171 +191,6 @@ impl Shaper {
     }
 }
 
-pub fn unicode_to_hb_script(script: unicode_script::Script) -> harfbuzz_sys::hb_script_t {
-    use harfbuzz_sys::*;
-    use unicode_script::Script::*;
-    match script {
-        Adlam => HB_SCRIPT_ADLAM,
-        Ahom => HB_SCRIPT_AHOM,
-        Anatolian_Hieroglyphs => HB_SCRIPT_ANATOLIAN_HIEROGLYPHS,
-        Arabic => HB_SCRIPT_ARABIC,
-        Armenian => HB_SCRIPT_ARMENIAN,
-        Avestan => HB_SCRIPT_AVESTAN,
-        Balinese => HB_SCRIPT_BALINESE,
-        Bamum => HB_SCRIPT_BAMUM,
-        Bassa_Vah => HB_SCRIPT_BASSA_VAH,
-        Batak => HB_SCRIPT_BATAK,
-        Bengali => HB_SCRIPT_BENGALI,
-        Bhaiksuki => HB_SCRIPT_BHAIKSUKI,
-        Bopomofo => HB_SCRIPT_BOPOMOFO,
-        Brahmi => HB_SCRIPT_BRAHMI,
-        Braille => HB_SCRIPT_BRAILLE,
-        Buginese => HB_SCRIPT_BUGINESE,
-        Buhid => HB_SCRIPT_BUHID,
-        Canadian_Aboriginal => HB_SCRIPT_CANADIAN_SYLLABICS,
-        Carian => HB_SCRIPT_CARIAN,
-        Caucasian_Albanian => HB_SCRIPT_CAUCASIAN_ALBANIAN,
-        Chakma => HB_SCRIPT_CHAKMA,
-        Cham => HB_SCRIPT_CHAM,
-        Cherokee => HB_SCRIPT_CHEROKEE,
-        Chorasmian => HB_SCRIPT_CHORASMIAN,
-        Common => HB_SCRIPT_COMMON,
-        Coptic => HB_SCRIPT_COPTIC,
-        Cuneiform => HB_SCRIPT_CUNEIFORM,
-        Cypriot => HB_SCRIPT_CYPRIOT,
-        Cyrillic => HB_SCRIPT_CYRILLIC,
-        Deseret => HB_SCRIPT_DESERET,
-        Devanagari => HB_SCRIPT_DEVANAGARI,
-        Dives_Akuru => HB_SCRIPT_DIVES_AKURU,
-        Dogra => HB_SCRIPT_DOGRA,
-        Duployan => HB_SCRIPT_DUPLOYAN,
-        Egyptian_Hieroglyphs => HB_SCRIPT_EGYPTIAN_HIEROGLYPHS,
-        Elbasan => HB_SCRIPT_ELBASAN,
-        Elymaic => HB_SCRIPT_ELYMAIC,
-        Ethiopic => HB_SCRIPT_ETHIOPIC,
-        Georgian => HB_SCRIPT_GEORGIAN,
-        Glagolitic => HB_SCRIPT_GLAGOLITIC,
-        Gothic => HB_SCRIPT_GOTHIC,
-        Grantha => HB_SCRIPT_GRANTHA,
-        Greek => HB_SCRIPT_GREEK,
-        Gujarati => HB_SCRIPT_GUJARATI,
-        Gunjala_Gondi => HB_SCRIPT_GUNJALA_GONDI,
-        Gurmukhi => HB_SCRIPT_GURMUKHI,
-        Han => HB_SCRIPT_HAN,
-        Hangul => HB_SCRIPT_HANGUL,
-        Hanifi_Rohingya => HB_SCRIPT_HANIFI_ROHINGYA,
-        Hanunoo => HB_SCRIPT_HANUNOO,
-        Hatran => HB_SCRIPT_HATRAN,
-        Hebrew => HB_SCRIPT_HEBREW,
-        Hiragana => HB_SCRIPT_HIRAGANA,
-        Imperial_Aramaic => HB_SCRIPT_IMPERIAL_ARAMAIC,
-        Inherited => HB_SCRIPT_INHERITED,
-        Inscriptional_Pahlavi => HB_SCRIPT_INSCRIPTIONAL_PAHLAVI,
-        Inscriptional_Parthian => HB_SCRIPT_INSCRIPTIONAL_PARTHIAN,
-        Javanese => HB_SCRIPT_JAVANESE,
-        Kaithi => HB_SCRIPT_KAITHI,
-        Kannada => HB_SCRIPT_KANNADA,
-        Katakana => HB_SCRIPT_KATAKANA,
-        Kayah_Li => HB_SCRIPT_KAYAH_LI,
-        Kharoshthi => HB_SCRIPT_KHAROSHTHI,
-        Khitan_Small_Script => HB_SCRIPT_KHITAN_SMALL_SCRIPT,
-        Khmer => HB_SCRIPT_KHMER,
-        Khojki => HB_SCRIPT_KHOJKI,
-        Khudawadi => HB_SCRIPT_KHUDAWADI,
-        Lao => HB_SCRIPT_LAO,
-        Latin => HB_SCRIPT_LATIN,
-        Lepcha => HB_SCRIPT_LEPCHA,
-        Limbu => HB_SCRIPT_LIMBU,
-        Linear_A => HB_SCRIPT_LINEAR_A,
-        Linear_B => HB_SCRIPT_LINEAR_B,
-        Lisu => HB_SCRIPT_LISU,
-        Lycian => HB_SCRIPT_LYCIAN,
-        Lydian => HB_SCRIPT_LYDIAN,
-        Mahajani => HB_SCRIPT_MAHAJANI,
-        Makasar => HB_SCRIPT_MAKASAR,
-        Malayalam => HB_SCRIPT_MALAYALAM,
-        Mandaic => HB_SCRIPT_MANDAIC,
-        Manichaean => HB_SCRIPT_MANICHAEAN,
-        Marchen => HB_SCRIPT_MARCHEN,
-        Masaram_Gondi => HB_SCRIPT_MASARAM_GONDI,
-        Medefaidrin => HB_SCRIPT_MEDEFAIDRIN,
-        Meetei_Mayek => HB_SCRIPT_MEETEI_MAYEK,
-        Mende_Kikakui => HB_SCRIPT_MENDE_KIKAKUI,
-        Meroitic_Cursive => HB_SCRIPT_MEROITIC_CURSIVE,
-        Meroitic_Hieroglyphs => HB_SCRIPT_MEROITIC_HIEROGLYPHS,
-        Miao => HB_SCRIPT_MIAO,
-        Modi => HB_SCRIPT_MODI,
-        Mongolian => HB_SCRIPT_MONGOLIAN,
-        Mro => HB_SCRIPT_MRO,
-        Multani => HB_SCRIPT_MULTANI,
-        Myanmar => HB_SCRIPT_MYANMAR,
-        Nabataean => HB_SCRIPT_NABATAEAN,
-        Nandinagari => HB_SCRIPT_NANDINAGARI,
-        New_Tai_Lue => HB_SCRIPT_NEW_TAI_LUE,
-        Newa => HB_SCRIPT_NEWA,
-        Nko => HB_SCRIPT_NKO,
-        Nushu => HB_SCRIPT_NUSHU,
-        Nyiakeng_Puachue_Hmong => HB_SCRIPT_NYIAKENG_PUACHUE_HMONG,
-        Ogham => HB_SCRIPT_OGHAM,
-        Ol_Chiki => HB_SCRIPT_OL_CHIKI,
-        Old_Hungarian => HB_SCRIPT_OLD_HUNGARIAN,
-        Old_Italic => HB_SCRIPT_OLD_ITALIC,
-        Old_North_Arabian => HB_SCRIPT_OLD_NORTH_ARABIAN,
-        Old_Permic => HB_SCRIPT_OLD_PERMIC,
-        Old_Persian => HB_SCRIPT_OLD_PERSIAN,
-        Old_Sogdian => HB_SCRIPT_OLD_SOGDIAN,
-        Old_South_Arabian => HB_SCRIPT_OLD_SOUTH_ARABIAN,
-        Old_Turkic => HB_SCRIPT_OLD_TURKIC,
-        Oriya => HB_SCRIPT_ORIYA,
-        Osage => HB_SCRIPT_OSAGE,
-        Osmanya => HB_SCRIPT_OSMANYA,
-        Pahawh_Hmong => HB_SCRIPT_PAHAWH_HMONG,
-        Palmyrene => HB_SCRIPT_PALMYRENE,
-        Pau_Cin_Hau => HB_SCRIPT_PAU_CIN_HAU,
-        Phags_Pa => HB_SCRIPT_PHAGS_PA,
-        Phoenician => HB_SCRIPT_PHOENICIAN,
-        Psalter_Pahlavi => HB_SCRIPT_PSALTER_PAHLAVI,
-        Rejang => HB_SCRIPT_REJANG,
-        Runic => HB_SCRIPT_RUNIC,
-        Samaritan => HB_SCRIPT_SAMARITAN,
-        Saurashtra => HB_SCRIPT_SAURASHTRA,
-        Sharada => HB_SCRIPT_SHARADA,
-        Shavian => HB_SCRIPT_SHAVIAN,
-        Siddham => HB_SCRIPT_SIDDHAM,
-        SignWriting => HB_SCRIPT_SIGNWRITING,
-        Sinhala => HB_SCRIPT_SINHALA,
-        Sogdian => HB_SCRIPT_SOGDIAN,
-        Sora_Sompeng => HB_SCRIPT_SORA_SOMPENG,
-        Soyombo => HB_SCRIPT_SOYOMBO,
-        Sundanese => HB_SCRIPT_SUNDANESE,
-        Syloti_Nagri => HB_SCRIPT_SYLOTI_NAGRI,
-        Syriac => HB_SCRIPT_SYRIAC,
-        Tagalog => HB_SCRIPT_TAGALOG,
-        Tagbanwa => HB_SCRIPT_TAGBANWA,
-        Tai_Le => HB_SCRIPT_TAI_LE,
-        Tai_Tham => HB_SCRIPT_TAI_THAM,
-        Tai_Viet => HB_SCRIPT_TAI_VIET,
-        Takri => HB_SCRIPT_TAKRI,
-        Tamil => HB_SCRIPT_TAMIL,
-        Tangut => HB_SCRIPT_TANGUT,
-        Telugu => HB_SCRIPT_TELUGU,
-        Thaana => HB_SCRIPT_THAANA,
-        Thai => HB_SCRIPT_THAI,
-        Tibetan => HB_SCRIPT_TIBETAN,
-        Tifinagh => HB_SCRIPT_TIFINAGH,
-        Tirhuta => HB_SCRIPT_TIRHUTA,
-        Ugaritic => HB_SCRIPT_UGARITIC,
-        Unknown => HB_SCRIPT_UNKNOWN,
-        Vai => HB_SCRIPT_VAI,
-        Warang_Citi => HB_SCRIPT_WARANG_CITI,
-        Wancho => HB_SCRIPT_WANCHO,
-        Yezidi => HB_SCRIPT_YEZIDI,
-        Yi => HB_SCRIPT_YI,
-        Zanabazar_Square => HB_SCRIPT_ZANABAZAR_SQUARE,
-        _ => HB_SCRIPT_UNKNOWN,
-    }
-}
-
 impl ShaperMethods for Shaper {
     /// Calculate the layout metrics associated with the given text when painted in a specific
     /// font.
@@ -371,7 +206,7 @@ impl ShaperMethods for Shaper {
                 },
             );
 
-            hb_buffer_set_script(hb_buffer, unicode_to_hb_script(options.script));
+            hb_buffer_set_script(hb_buffer, options.script.to_hb_script());
 
             hb_buffer_add_utf8(
                 hb_buffer,
diff --git a/components/layout/Cargo.toml b/components/layout/Cargo.toml
index a6bc544f9b3..90aaaa58011 100644
--- a/components/layout/Cargo.toml
+++ b/components/layout/Cargo.toml
@@ -48,7 +48,7 @@ smallvec = { version = "0.6", features = ["std", "union"] }
 style = { path = "../style", features = ["servo", "servo-layout-2013"] }
 style_traits = { path = "../style_traits" }
 unicode-bidi = { version = "0.3", features = ["with_serde"] }
-unicode-script = "0.5"
+unicode-script = { version = "0.3", features = ["harfbuzz"] }
 webrender_api = { git = "https://github.com/servo/webrender" }
 xi-unicode = "0.1.0"
 
diff --git a/components/layout/text.rs b/components/layout/text.rs
index 979443feae4..1d9fae80297 100644
--- a/components/layout/text.rs
+++ b/components/layout/text.rs
@@ -29,7 +29,7 @@ use style::properties::ComputedValues;
 use style::values::generics::text::LineHeight;
 use style::values::specified::text::{TextTransform, TextTransformCase};
 use unicode_bidi as bidi;
-use unicode_script::Script;
+use unicode_script::{get_script, Script};
 use xi_unicode::LineBreakLeafIter;
 
 /// Returns the concatenated text of a list of unscanned text fragments.
@@ -259,7 +259,7 @@ impl TextRunScanner {
                         //
                         // TODO: Special handling of paired punctuation characters.
                         // http://www.unicode.org/reports/tr24/#Common
-                        let script = Script::from(character);
+                        let script = get_script(character);
                         let compatible_script = is_compatible(script, run_info.script);
                         if compatible_script && !is_specific(run_info.script) && is_specific(script)
                         {
diff --git a/components/layout_2020/Cargo.toml b/components/layout_2020/Cargo.toml
index 75a948fa56d..6ca3d709627 100644
--- a/components/layout_2020/Cargo.toml
+++ b/components/layout_2020/Cargo.toml
@@ -42,7 +42,7 @@ servo_arc = { path = "../servo_arc" }
 servo_url = { path = "../url" }
 style = { path = "../style", features = ["servo", "servo-layout-2020"] }
 style_traits = { path = "../style_traits" }
-unicode-script = "0.5"
+unicode-script = { version = "0.3", features = ["harfbuzz"] }
 webrender_api = { git = "https://github.com/servo/webrender" }
 
 [dev-dependencies]
diff --git a/components/servo/Cargo.toml b/components/servo/Cargo.toml
index 3960ec97c47..3b653fcac84 100644
--- a/components/servo/Cargo.toml
+++ b/components/servo/Cargo.toml
@@ -54,7 +54,7 @@ env_logger = "0.7"
 euclid = "0.20"
 gfx = { path = "../gfx" }
 gfx_traits = { path = "../gfx_traits" }
-gleam = "0.12"
+gleam = "0.11"
 gstreamer = { version = "0.15", features = ["v1_16"], optional = true }
 ipc-channel = "0.14"
 keyboard-types = "0.5"
diff --git a/servo-tidy.toml b/servo-tidy.toml
index 435bf8f52f7..bdd97b77799 100644
--- a/servo-tidy.toml
+++ b/servo-tidy.toml
@@ -32,6 +32,7 @@ packages = [
   "arrayvec",
   "base64",
   "cocoa",
+  "deflate",
   "gleam",
   "libloading",
   "metal",
@@ -39,6 +40,7 @@ packages = [
   "num-rational",
   "parking_lot",
   "parking_lot_core",
+  "png",
   "wayland-sys",
 
   # https://github.com/servo/servo/issues/26933
@@ -63,6 +65,7 @@ packages = [
   "core-foundation",
   "core-foundation-sys",
   "core-graphics",
+  "core-text",
   "lyon_geom",
 ]
 # Files that are ignored for all tidy and lint checks.
diff --git a/tests/wpt/metadata/css/css-paint-api/background-image-tiled.https.html.ini b/tests/wpt/metadata/css/css-paint-api/background-image-tiled.https.html.ini
index d74202a2080..10e6dc50956 100644
--- a/tests/wpt/metadata/css/css-paint-api/background-image-tiled.https.html.ini
+++ b/tests/wpt/metadata/css/css-paint-api/background-image-tiled.https.html.ini
@@ -1,4 +1,3 @@
 [background-image-tiled.https.html]
   type: reftest
-  expected: CRASH
-  bug: https://github.com/servo/servo/issues/27467
+  expected: FAIL