diff --git a/pkgs/development/libraries/protobufc/1.3.nix b/pkgs/development/libraries/protobufc/1.3.nix
index 304f9d61f397..82126727282c 100644
--- a/pkgs/development/libraries/protobufc/1.3.nix
+++ b/pkgs/development/libraries/protobufc/1.3.nix
@@ -1,12 +1,11 @@
 { callPackage, fetchFromGitHub, ... } @ args:
 
-callPackage ./generic.nix (args // {
-  version = "1.3.1";
+callPackage ./generic.nix (args // rec {
+  version = "1.3.3";
   src = fetchFromGitHub {
     owner = "protobuf-c";
     repo = "protobuf-c";
-    #rev = "v${version}";
-    rev = "9412830d0680150d429d2aa170b8d7218ab49397";
-    sha256 = "175cmaj5231iqzhf5a9sxw2y3i165chk3681m1b5mp8di927q5ai";
+    rev = "v${version}";
+    sha256 = "13948amsjj9xpa4yl6amlyk3ksr96bbd4ngshh2yzflwcslhg6gv";
   };
 })