diff --git a/pkgs/development/python-modules/pysnmplib/default.nix b/pkgs/development/python-modules/pysnmplib/default.nix
index 71fdfa28057b..3b1c8fe2b299 100644
--- a/pkgs/development/python-modules/pysnmplib/default.nix
+++ b/pkgs/development/python-modules/pysnmplib/default.nix
@@ -10,7 +10,7 @@
 
 buildPythonPackage rec {
   pname = "pysnmplib";
-  version = "5.0.20";
+  version = "5.0.21";
   format = "pyproject";
 
   disabled = pythonOlder "3.8";
@@ -19,7 +19,7 @@ buildPythonPackage rec {
     owner = "pysnmp";
     repo = "pysnmp";
     rev = "refs/tags/v${version}";
-    hash = "sha256-SrtOn9zETtobT6nMVHLi6hP7VZGBvXvFzoThTi3ITag=";
+    hash = "sha256-ejRIlRxDbdZgy7wHilSzunRTGn1uO6YLLmLxNrrHKss=";
   };
 
   nativeBuildInputs = [