diff --git a/pkgs/development/python-modules/pyscss/default.nix b/pkgs/development/python-modules/pyscss/default.nix
index f268566fb54..30b5205050d 100644
--- a/pkgs/development/python-modules/pyscss/default.nix
+++ b/pkgs/development/python-modules/pyscss/default.nix
@@ -9,15 +9,15 @@
 , pythonOlder
 }:
 
-buildPythonPackage {
+buildPythonPackage rec {
   pname = "pyScss";
-  version = "1.3.5";
+  version = "1.3.7";
 
   src = fetchFromGitHub {
-    sha256 = "0lfsan74vcw6dypb196gmbprvlbran8p7w6czy8hyl2b1l728mhz";
-    rev = "v1.3.5";
     repo = "pyScss";
     owner = "Kronuz";
+    rev = version;
+    sha256 = "0701hziiiw67blafgpmjhzspmrss8mfvif7fw0rs8fikddwwc9g6";
   };
 
   checkInputs = [ pytest ];