diff --git a/pkgs/development/ocaml-modules/colombe/default.nix b/pkgs/development/ocaml-modules/colombe/default.nix
index d0ed2b870e54..8b67fc6e21d3 100644
--- a/pkgs/development/ocaml-modules/colombe/default.nix
+++ b/pkgs/development/ocaml-modules/colombe/default.nix
@@ -12,14 +12,14 @@
 
 let
   pname = "colombe";
-  version = "0.12.0";
+  version = "0.12.1";
 in
 buildDunePackage {
   inherit pname version;
   minimalOCamlVersion = "4.03";
   src = fetchurl {
     url = "https://github.com/mirage/colombe/releases/download/v${version}/colombe-${version}.tbz";
-    hash = "sha256-9g9l0wTzlXtESNeoBxhjMxlX0bRFY19T2+PN1lZ7ojE=";
+    hash = "sha256-6LHsxHUe5zGuNvgcIpJjg17gmx4QrKiO4UDIZcTB2CM=";
   };
   propagatedBuildInputs = [
     angstrom