diff --git a/pkgs/development/libraries/protobufc/1.3.nix b/pkgs/development/libraries/protobufc/1.3.nix
index 803f5a9ba79c..4d53c42a3478 100644
--- a/pkgs/development/libraries/protobufc/1.3.nix
+++ b/pkgs/development/libraries/protobufc/1.3.nix
@@ -1,11 +1,11 @@
 { callPackage, fetchFromGitHub, ... } @ args:
 
 callPackage ./generic.nix (args // rec {
-  version = "1.3.0";
+  version = "1.3.1";
   src = fetchFromGitHub {
     owner = "protobuf-c";
     repo = "protobuf-c";
     rev = "v${version}";
-    sha256 = "0shk18rjhzn2lqrwk97ks3x8gj77isc8szyb3xsgjrbrvkzjgvaa";
+    sha256 = "1dmvs0bhyx94ipaq3c7jmwcz4hwjmznn7310kqkqx7ly0w5vxxxr";
   };
 })