diff --git a/pkgs/development/python-modules/css-parser/default.nix b/pkgs/development/python-modules/css-parser/default.nix
index 1b2f933ff2dd..56e54f3ea7f5 100644
--- a/pkgs/development/python-modules/css-parser/default.nix
+++ b/pkgs/development/python-modules/css-parser/default.nix
@@ -8,13 +8,13 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "css-parser";
-  version = "1.0.10";
+  version = "1.1.1";
   pyproject = true;
   __structuredAttrs = true;
 
   src = fetchPypi {
     inherit (finalAttrs) pname version;
-    hash = "sha256-vx6XKtMzROkyBpZPtM2QjZ3e+fzQwB+pPg1zRnU5Q2M=";
+    hash = "sha256-k8f7CM8W1Fu7i5ZLT0iZpOs22b5v/vF/ma0oD0A0s2w=";
   };
 
   build-system = [ setuptools ];