diff --git a/css-inline/Cargo.toml b/css-inline/Cargo.toml
index 345e1044..1a43c9f9 100644
--- a/css-inline/Cargo.toml
+++ b/css-inline/Cargo.toml
@@ -31,7 +31,7 @@ stylesheet-cache = ["lru"]
 
 [dependencies]
 cssparser = "0.37.0"
-html5ever = "0.39.0"
+html5ever = "0.40.1"
 lru = { version = "0.18.0", optional = true }
 memchr = "2.7"
 precomputed-hash = "0.1.1"