diff --git a/pkgs/development/tools/go-protobuf/default.nix b/pkgs/development/tools/go-protobuf/default.nix
index 28d429c64328..c5e9af3e7bbf 100644
--- a/pkgs/development/tools/go-protobuf/default.nix
+++ b/pkgs/development/tools/go-protobuf/default.nix
@@ -2,13 +2,13 @@
 
 buildGoModule rec {
   pname = "go-protobuf";
-  version = "1.4.2";
+  version = "1.4.3";
 
   src = fetchFromGitHub {
     owner = "golang";
     repo = "protobuf";
     rev = "v${version}";
-    sha256 = "0m5z81im4nsyfgarjhppayk4hqnrwswr3nix9mj8pff8x9jvcjqw";
+    sha256 = "1kf1d7xmyjvy0z6j5czp6nqyvj9zrk6liv6znif08927xqfrzyln";
   };
 
   vendorSha256 = "04w9vhkrwb2zfqk73xmhignjyvjqmz1j93slkqp7v8jj2dhyla54";