diff --git a/pkgs/development/ocaml-modules/ppxlib/default.nix b/pkgs/development/ocaml-modules/ppxlib/default.nix
index 656b650b13f..589eb913337 100644
--- a/pkgs/development/ocaml-modules/ppxlib/default.nix
+++ b/pkgs/development/ocaml-modules/ppxlib/default.nix
@@ -3,14 +3,14 @@
 }:
 
 stdenv.mkDerivation rec {
-  version = "0.3.0";
+  version = "0.3.1";
   name = "ocaml${ocaml.version}-ppxlib-${version}";
 
   src = fetchFromGitHub {
     owner = "ocaml-ppx";
     repo = "ppxlib";
     rev = version;
-    sha256 = "0csp49jh7zgjnqh46mxbf322whlbmgy7v1a12nvxh97qg6i5fvsy";
+    sha256 = "0qpjl84x8abq9zivifb0k8ld7fa1lrhkbajmmccvfv06ja3as1v4";
   };
 
   buildInputs = [ ocaml findlib dune ];