diff --git a/pkgs/development/ocaml-modules/cmarkit/default.nix b/pkgs/development/ocaml-modules/cmarkit/default.nix
index ce6d98064a6b..0a36ea196d47 100644
--- a/pkgs/development/ocaml-modules/cmarkit/default.nix
+++ b/pkgs/development/ocaml-modules/cmarkit/default.nix
@@ -14,11 +14,11 @@ else
 
 stdenv.mkDerivation rec {
   pname = "cmarkit";
-  version = "0.2.0";
+  version = "0.3.0";
 
   src = fetchurl {
     url = "https://erratique.ch/software/cmarkit/releases/cmarkit-${version}.tbz";
-    hash = "sha256-86RuGB5pLbw/ThPGz9+qLaZRH7xvxbYrZWFLLIkc5Mk=";
+    hash = "sha256-RouM5iU7VeTT0+4yhBgdEmxROeP/X31iqDjd1VI7z5c=";
   };
 
   nativeBuildInputs = [