diff --git a/pkgs/development/ocaml-modules/fix/default.nix b/pkgs/development/ocaml-modules/fix/default.nix
index e960167c869..1fdf788c363 100644
--- a/pkgs/development/ocaml-modules/fix/default.nix
+++ b/pkgs/development/ocaml-modules/fix/default.nix
@@ -2,14 +2,14 @@
 
 buildDunePackage rec {
   pname = "fix";
-  version = "20211231";
+  version = "20220121";
 
   src = fetchFromGitLab {
     domain = "gitlab.inria.fr";
     owner = "fpottier";
     repo = "fix";
     rev = "${version}";
-    sha256 = "sha256-T/tbiC95yzPb60AiEcvMRU47D8xUZNN5C4X33Y1VB9E=";
+    sha256 = "sha256-suWkZDLnXEO/4QCGmNuyLFOV0LJsFOMD13gxOcgu6JQ=";
   };
 
   minimumOCamlVersion = "4.03";