diff --git a/CHANGELOG.md b/CHANGELOG.md
index e33b6b9..29a14bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## Pending
 
 - Use FxHasher for internal hash-based data structures.
+- Bump [css-minify](https://github.com/Mnwa/css-minify) to 0.3.1.
 
 ## 0.10.3
 
diff --git a/rust/main/Cargo.toml b/rust/main/Cargo.toml
index 2317f61..92c5d33 100644
--- a/rust/main/Cargo.toml
+++ b/rust/main/Cargo.toml
@@ -17,7 +17,7 @@ maintenance = { status = "actively-developed" }
 
 [dependencies]
 aho-corasick = "0.7"
-css-minify = "0.2.2"
+css-minify = "0.3.1"
 lazy_static = "1.4"
 memchr = "2"
 minify-js = "0.2.6"
diff --git a/rust/onepass/Cargo.toml b/rust/onepass/Cargo.toml
index d2c3061..6f8198e 100644
--- a/rust/onepass/Cargo.toml
+++ b/rust/onepass/Cargo.toml
@@ -17,7 +17,7 @@ maintenance = { status = "actively-developed" }
 
 [dependencies]
 aho-corasick = "0.7"
-css-minify = "0.2.2"
+css-minify = "0.3.1"
 lazy_static = "1.4"
 memchr = "2"
 minify-js = "0.2.6"