diff --git a/Cargo.lock b/Cargo.lock
index 04057be5ec1..e65b2239f9a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1732,7 +1732,7 @@ dependencies = [
  "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_layout_interface 0.0.1",
  "script_traits 0.0.1",
- "selectors 0.19.0",
+ "selectors 0.20.0",
  "serde 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo_arc 0.1.1",
@@ -1781,7 +1781,7 @@ dependencies = [
  "script 0.0.1",
  "script_layout_interface 0.0.1",
  "script_traits 0.0.1",
- "selectors 0.19.0",
+ "selectors 0.20.0",
  "serde_json 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo_allocator 0.0.1",
  "servo_arc 0.1.1",
@@ -1978,7 +1978,7 @@ dependencies = [
  "hyper 0.10.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "mozjs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "selectors 0.19.0",
+ "selectors 0.20.0",
  "serde 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_bytes 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo_arc 0.1.1",
@@ -2966,7 +2966,7 @@ dependencies = [
  "script_layout_interface 0.0.1",
  "script_plugins 0.0.1",
  "script_traits 0.0.1",
- "selectors 0.19.0",
+ "selectors 0.20.0",
  "serde 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_bytes 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3015,7 +3015,7 @@ dependencies = [
  "profile_traits 0.0.1",
  "range 0.0.1",
  "script_traits 0.0.1",
- "selectors 0.19.0",
+ "selectors 0.20.0",
  "servo_arc 0.1.1",
  "servo_atoms 0.0.1",
  "servo_url 0.0.1",
@@ -3078,7 +3078,7 @@ dependencies = [
 
 [[package]]
 name = "selectors"
-version = "0.19.0"
+version = "0.20.0"
 dependencies = [
  "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "cssparser 0.24.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3500,7 +3500,7 @@ dependencies = [
  "precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "selectors 0.19.0",
+ "selectors 0.20.0",
  "serde 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo_arc 0.1.1",
  "servo_atoms 0.0.1",
@@ -3542,7 +3542,7 @@ dependencies = [
  "html5ever 0.22.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "selectors 0.19.0",
+ "selectors 0.20.0",
  "serde_json 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo_arc 0.1.1",
  "servo_atoms 0.0.1",
@@ -3563,7 +3563,7 @@ dependencies = [
  "euclid 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "malloc_size_of_derive 0.0.1",
- "selectors 0.19.0",
+ "selectors 0.20.0",
  "serde 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo_arc 0.1.1",
  "servo_atoms 0.0.1",
diff --git a/components/selectors/Cargo.toml b/components/selectors/Cargo.toml
index 6d5a93b3485..42f8985b51b 100644
--- a/components/selectors/Cargo.toml
+++ b/components/selectors/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "selectors"
-version = "0.19.0"
+version = "0.20.0"
 authors = ["The Servo Project Developers"]
 documentation = "https://docs.rs/selectors/"