diff --git a/pkgs/development/python-modules/casbin/default.nix b/pkgs/development/python-modules/casbin/default.nix
index 5df8ae38bebe..6350fda9650e 100644
--- a/pkgs/development/python-modules/casbin/default.nix
+++ b/pkgs/development/python-modules/casbin/default.nix
@@ -9,7 +9,7 @@
 
 buildPythonPackage rec {
   pname = "casbin";
-  version = "1.16.5";
+  version = "1.16.6";
   format = "setuptools";
 
   disabled = pythonOlder "3.6";
@@ -18,7 +18,7 @@ buildPythonPackage rec {
     owner = pname;
     repo = "pycasbin";
     rev = "refs/tags/v${version}";
-    sha256 = "sha256-27j1iuqf0af4Cm3r32FJnWnjvvUcacuv2+1OL6z/mwM=";
+    sha256 = "sha256-i7XwB1qV2WQD1dWxi4ncXsAwGUR5tWQhp+Z/jVvv1oo=";
   };
 
   propagatedBuildInputs = [