diff --git a/pkgs/development/python-modules/cronsim/default.nix b/pkgs/development/python-modules/cronsim/default.nix
index 2ecb45c3a73a..f924a13dc253 100644
--- a/pkgs/development/python-modules/cronsim/default.nix
+++ b/pkgs/development/python-modules/cronsim/default.nix
@@ -8,7 +8,7 @@
 
 buildPythonPackage rec {
   pname = "cronsim";
-  version = "2.5";
+  version = "2.6";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -17,7 +17,7 @@ buildPythonPackage rec {
     owner = "cuu508";
     repo = "cronsim";
     rev = "refs/tags/${version}";
-    hash = "sha256-TSVFkMCMmrMXaPJPPNjIML+z98i1iIYuKH7hHiZnJkg=";
+    hash = "sha256-WJ3v2cqAKZkXp1u8xJ0aFuyHPq0gn24DRxpnq5cH/90=";
   };
 
   nativeCheckInputs = [ pytestCheckHook ];