diff --git a/pkgs/development/python-modules/cppy/default.nix b/pkgs/development/python-modules/cppy/default.nix
index b0f48f69927d..14fc793caaba 100644
--- a/pkgs/development/python-modules/cppy/default.nix
+++ b/pkgs/development/python-modules/cppy/default.nix
@@ -9,7 +9,7 @@
 
 buildPythonPackage rec {
   pname = "cppy";
-  version = "1.3.0";
+  version = "1.3.1";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -18,7 +18,7 @@ buildPythonPackage rec {
     owner = "nucleic";
     repo = "cppy";
     tag = version;
-    hash = "sha256-RwwXwdjpq4ZjUyHkWoh3eaJDzIV3MargeoBJ+nTHsyg=";
+    hash = "sha256-/u9JQ2ivjSlBPodfAjeDmJ+HUu1rFZ58p3V5L2dy4Jk=";
   };
 
   build-system = [ setuptools-scm ];