diff --git a/pkgs/development/python-modules/pure-protobuf/default.nix b/pkgs/development/python-modules/pure-protobuf/default.nix
index 283d59ef2903..d5388bb849fd 100644
--- a/pkgs/development/python-modules/pure-protobuf/default.nix
+++ b/pkgs/development/python-modules/pure-protobuf/default.nix
@@ -14,7 +14,7 @@
 
 buildPythonPackage rec {
   pname = "pure-protobuf";
-  version = "3.1.0";
+  version = "3.1.1";
 
   format = "pyproject";
   # < 3.10 requires get-annotations which isn't packaged yet
@@ -24,7 +24,7 @@ buildPythonPackage rec {
     owner = "eigenein";
     repo = "protobuf";
     rev = "refs/tags/${version}";
-    hash = "sha256-JXC68iEX5VepIe4qpugvY0Qb3JlM5mPGHnUVWvb1TDA=";
+    hash = "sha256-xcW6ODL0UqwVesqIUxxzN5EuXK8hE4rY1inatuM1UpI=";
   };
 
   build-system = [