diff --git a/pyproject.toml b/pyproject.toml
index 2c44260..524ae5c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dependencies = [
     "tree-sitter-go>=0.21.0",
     "beautifulsoup4>=4.12.0",
     "lxml>=4.9.0",
-    "cssutils>=2.6.0",
+    "cssutils>=2.11.1",
     "watchdog>=3.0.0",
 ]