diff --git a/pkgs/development/python-modules/py-ccm15/default.nix b/pkgs/development/python-modules/py-ccm15/default.nix
index d6371c1e012b..ace59fce7e14 100644
--- a/pkgs/development/python-modules/py-ccm15/default.nix
+++ b/pkgs/development/python-modules/py-ccm15/default.nix
@@ -11,7 +11,7 @@
 
 buildPythonPackage rec {
   pname = "py-ccm15";
-  version = "0.1.2";
+  version = "1.1.2";
   pyproject = true;
 
   src = fetchFromGitHub {
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     # Therefore it should not be marked unstable
     # upstream issue: https://github.com/ocalvo/py-ccm15/issues/10
     tag = "v${version}";
-    hash = "sha256-QfitJzCFk0gnlcCvvKzuI4fS1lVm79q4xaDZFKKt458=";
+    hash = "sha256-qEowsu7ebnD5eCR7SiWEqLwR3yqoqOnuw4wSQm4rmHQ=";
   };
 
   build-system = [ setuptools ];