diff --git a/pkgs/development/tools/ocaml/crunch/default.nix b/pkgs/development/tools/ocaml/crunch/default.nix
index 07082b7f5d22..54f6639fbeba 100644
--- a/pkgs/development/tools/ocaml/crunch/default.nix
+++ b/pkgs/development/tools/ocaml/crunch/default.nix
@@ -1,18 +1,18 @@
-{ lib, buildDunePackage, fetchurl, ocaml, cmdliner, ptime }:
+{ lib, buildDunePackage, fetchurl, ocaml, cmdliner_1_1, ptime }:
 
 buildDunePackage rec {
 
   pname = "crunch";
-  version = "3.1.0";
-
-  useDune2 = true;
+  version = "3.3.1";
 
   src = fetchurl {
-    url = "https://github.com/mirage/ocaml-crunch/releases/download/v${version}/crunch-v${version}.tbz";
-    sha256 = "0d26715a4h9r1wibnc12xy690m1kan7hrcgbb5qk8x78zsr67lnf";
+    url = "https://github.com/mirage/ocaml-crunch/releases/download/v${version}/crunch-${version}.tbz";
+    sha256 = "sha256-LFug1BELy7dzHLpOr7bESnSHw/iMGtR0AScbaf+o7Wo=";
   };
 
-  propagatedBuildInputs = [ cmdliner ptime ];
+  buildInputs = [ cmdliner_1_1 ];
+
+  propagatedBuildInputs = [ ptime ];
 
   outputs = [ "lib" "bin" "out" ];