diff --git a/pkgs/development/python-modules/pykaleidescape/default.nix b/pkgs/development/python-modules/pykaleidescape/default.nix
index af2645006e18..7d9755f2dd1e 100644
--- a/pkgs/development/python-modules/pykaleidescape/default.nix
+++ b/pkgs/development/python-modules/pykaleidescape/default.nix
@@ -11,7 +11,7 @@
 
 buildPythonPackage rec {
   pname = "pykaleidescape";
-  version = "2022.2.3";
+  version = "1.0.1";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -20,7 +20,7 @@ buildPythonPackage rec {
     owner = "SteveEasley";
     repo = pname;
     rev = "refs/tags/v${version}";
-    hash = "sha256-h5G7wV4Z+sf8Qq4GNFsp8DVDSgQgS0dLGf+DzK/egYM=";
+    hash = "sha256-KM/gtpsQ27QZz2uI1t/yVN5no0zp9LZag1duAJzK55g=";
   };
 
   propagatedBuildInputs = [