diff --git a/pkgs/development/libraries/protobuf/29.nix b/pkgs/development/libraries/protobuf/29.nix
index d36ab072b3d7..697e8594878d 100644
--- a/pkgs/development/libraries/protobuf/29.nix
+++ b/pkgs/development/libraries/protobuf/29.nix
@@ -2,8 +2,8 @@
 
 callPackage ./generic.nix (
   {
-    version = "29.5";
-    hash = "sha256-nraqBM87DJYU69Zx0dV9OMnI0Jhn8Axg8DvzUQDQ90Y=";
+    version = "29.6";
+    hash = "sha256-IIFqEKOlyQMuxzW3HNhCNM/x1gYmW7gaNu7IxY3VMAU=";
   }
   // args
 )
diff --git a/pkgs/development/python-modules/protobuf/5.nix b/pkgs/development/python-modules/protobuf/5.nix
index 8ea371e836c9..f714303f2099 100644
--- a/pkgs/development/python-modules/protobuf/5.nix
+++ b/pkgs/development/python-modules/protobuf/5.nix
@@ -8,12 +8,12 @@
 
 buildPythonPackage rec {
   pname = "protobuf";
-  version = "5.29.5";
+  version = "5.29.6";
   pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-vBRjuv1LCSkhbDX0N6jihzGit/49mLt3pgDvztWhXIQ=";
+    hash = "sha256-2p7mpUJLazD9XkXF6mY671QMqV+a2Z0eiH6BnN+bhyM=";
   };
 
   build-system = [ setuptools ];