diff --git a/pkgs/development/python-modules/casbin/default.nix b/pkgs/development/python-modules/casbin/default.nix
index f09b2ab6630..f38d9aa634a 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 = "1.16.3";
+  version = "1.16.4";
   format = "setuptools";
 
   disabled = pythonOlder "3.6";
@@ -18,7 +18,7 @@ buildPythonPackage rec {
     owner = pname;
     repo = "pycasbin";
     rev = "refs/tags/v${version}";
-    sha256 = "sha256-7URIk76iQ1u59RM1VeqO5qqTg+0kCPtsP+2Y5CxCZ3I=";
+    sha256 = "sha256-/zIx1GlzAnQf0t2d8ME+bi2CZGj6Qr9f5Z4afrQD8FY=";
   };
 
   propagatedBuildInputs = [