diff --git a/pkgs/by-name/ce/cerberus/package.nix b/pkgs/by-name/ce/cerberus/package.nix
index 6e588d63d961..f7eaddb31a2f 100644
--- a/pkgs/by-name/ce/cerberus/package.nix
+++ b/pkgs/by-name/ce/cerberus/package.nix
@@ -10,15 +10,15 @@
   testers,
   cerberus,
 }:
-ocamlPackages.buildDunePackage rec {
+ocamlPackages.buildDunePackage (finalAttrs: {
   pname = "cerberus";
-  version = "0-unstable-2025-11-26";
+  version = "0-unstable-2025-12-15";
 
   src = fetchFromGitHub {
     owner = "rems-project";
     repo = "cerberus";
-    rev = "6d60ef25944ebcdab892158c949a8e05501557dc";
-    hash = "sha256-RucW01xuW5b6F9/O1OL99YJn3rSMCP7l7Cwjuv4PNIc=";
+    rev = "50621977ba282ac527e9259f7e9334d2c5bef41c";
+    hash = "sha256-CAZeLG1M9oBzl/5EsIYwyV3St5fdwmfkPApACbsIYAc=";
   };
 
   patches = [
@@ -35,7 +35,7 @@ ocamlPackages.buildDunePackage rec {
   # our version since git is impure
   postPatch = ''
     substituteInPlace tools/gen_version.ml \
-      --replace-fail '"unknown"' '"${version}"'
+      --replace-fail '"unknown"' '"${finalAttrs.version}"'
   '';
 
   minimalOCamlVersion = "4.12";
@@ -136,4 +136,4 @@ ocamlPackages.buildDunePackage rec {
     ];
     platforms = lib.platforms.unix;
   };
-}
+})