diff --git a/Cargo.lock b/Cargo.lock
index 37ffc400947..7f1af102818 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1221,7 +1221,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "serde",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "syn",
 ]
 
@@ -1699,7 +1699,7 @@ dependencies = [
  "half",
  "inflate",
  "lebe",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "threadpool",
 ]
 
@@ -1714,7 +1714,7 @@ name = "fallible"
 version = "0.0.1"
 dependencies = [
  "hashglobe",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
 ]
 
 [[package]]
@@ -2120,7 +2120,7 @@ dependencies = [
  "parking_lot 0.11.0",
  "range-alloc",
  "raw-window-handle",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "spirv_cross",
  "thunderdome",
  "winapi",
@@ -2142,7 +2142,7 @@ dependencies = [
  "log",
  "range-alloc",
  "raw-window-handle",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "spirv_cross",
  "winapi",
 ]
@@ -2179,7 +2179,7 @@ dependencies = [
  "parking_lot 0.11.0",
  "range-alloc",
  "raw-window-handle",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "spirv_cross",
  "storage-map",
 ]
@@ -2200,7 +2200,7 @@ dependencies = [
  "log",
  "objc",
  "raw-window-handle",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "winapi",
 ]
 
@@ -3483,7 +3483,7 @@ dependencies = [
  "log",
  "servo-egl",
  "simpleservo",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "webxr",
  "webxr-api",
 ]
@@ -3665,7 +3665,7 @@ dependencies = [
  "serde_bytes",
  "servo_arc",
  "smallbitvec",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "string_cache",
  "thin-slice",
  "time",
@@ -4582,7 +4582,7 @@ dependencies = [
  "cloudabi 0.0.3",
  "libc",
  "redox_syscall 0.1.56",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "winapi",
 ]
 
@@ -4597,7 +4597,7 @@ dependencies = [
  "instant",
  "libc",
  "redox_syscall 0.1.56",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "winapi",
 ]
 
@@ -4610,7 +4610,7 @@ dependencies = [
  "cfg-if 1.0.0",
  "libc",
  "redox_syscall 0.2.13",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "windows-sys",
 ]
 
@@ -5580,7 +5580,7 @@ dependencies = [
  "phf_codegen 0.8.0",
  "precomputed-hash",
  "servo_arc",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "to_shmem",
  "to_shmem_derive",
 ]
@@ -6146,9 +6146,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
+checksum = "2fd0db749597d91ff862fd1d55ea87f7855a744a8425a64695b6fca237d1dad1"
 dependencies = [
  "serde",
 ]
@@ -6340,7 +6340,7 @@ dependencies = [
  "servo_config",
  "servo_url",
  "smallbitvec",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "string_cache",
  "style_derive",
  "style_traits",
@@ -6672,7 +6672,7 @@ dependencies = [
  "cssparser",
  "servo_arc",
  "smallbitvec",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "string_cache",
  "thin-slice",
 ]
@@ -7207,7 +7207,7 @@ checksum = "a21817947c7011bbd0a27e11b17b337bfd022e8544b071a2641232047966fbda"
 dependencies = [
  "nix 0.20.0",
  "once_cell",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "wayland-sys 0.28.6",
 ]
 
@@ -7370,7 +7370,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sig",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "svg_fmt",
  "time",
  "tracy-rs",
@@ -7490,7 +7490,7 @@ dependencies = [
  "parking_lot 0.11.0",
  "ron 0.6.0",
  "serde",
- "smallvec 1.8.0",
+ "smallvec 1.9.0",
  "thiserror",
  "tracing",
  "wgpu-types",
diff --git a/ports/libmlservo/Cargo.toml b/ports/libmlservo/Cargo.toml
index e19a859ab9d..38d9e41f439 100644
--- a/ports/libmlservo/Cargo.toml
+++ b/ports/libmlservo/Cargo.toml
@@ -23,6 +23,6 @@ libservo = { path = "../../components/servo", features = ["no_static_freetype"]
 log = "0.4"
 servo-egl = "0.2"
 simpleservo = { path = "../libsimpleservo/api", features = ["no_static_freetype"] }
-smallvec = "1.6"
+smallvec = "1.9"
 webxr = { git = "https://github.com/servo/webxr", features = ["ipc", "magicleap"] }
 webxr-api = { git = "https://github.com/servo/webxr", features = ["ipc"] }