diff --git a/pkgs/development/python-modules/click-option-group/default.nix b/pkgs/development/python-modules/click-option-group/default.nix
index 2f8600a37352..b1a2defe518f 100644
--- a/pkgs/development/python-modules/click-option-group/default.nix
+++ b/pkgs/development/python-modules/click-option-group/default.nix
@@ -8,7 +8,7 @@
 
 buildPythonPackage rec {
   pname = "click-option-group";
-  version = "0.5.5";
+  version = "0.5.6";
   format = "setuptools";
   disabled = pythonOlder "3.6";
 
@@ -16,7 +16,7 @@ buildPythonPackage rec {
     owner = "click-contrib";
     repo = pname;
     rev = "refs/tags/v${version}";
-    hash = "sha256-ur7ycioZmgWMp4N+MURj1ggYMzs2eauteg1B5eLkSvc=";
+    hash = "sha256-uR5rIZPPT6pRk/jJEy2rZciOXrHWVWN6BfGroQ3znas=";
   };
 
   propagatedBuildInputs = [