diff --git a/pkgs/development/libraries/protobuf/25.nix b/pkgs/development/libraries/protobuf/25.nix
index 6d1d6253bc19..963d406392b8 100644
--- a/pkgs/development/libraries/protobuf/25.nix
+++ b/pkgs/development/libraries/protobuf/25.nix
@@ -2,8 +2,8 @@
 
 callPackage ./generic.nix (
   {
-    version = "25.8";
-    hash = "sha256-UUUblMKN1xFknFtanq5MRVQ57dzhOV9sPqlw1J37aNE=";
+    version = "25.9";
+    hash = "sha256-Psv9dJxrHnlWTLZF+FwjqB/Yw2r8DWdcuvzB9vv0Nok=";
   }
   // args
 )