diff --git a/pkgs/development/ocaml-modules/odoc/default.nix b/pkgs/development/ocaml-modules/odoc/default.nix
index 924f643cc88d..92ea0794a1e1 100644
--- a/pkgs/development/ocaml-modules/odoc/default.nix
+++ b/pkgs/development/ocaml-modules/odoc/default.nix
@@ -13,8 +13,7 @@ buildDunePackage rec {
     sha256 = "sha256-9XTb0ozQ/DorlVJcS7ld320fZAi7T+EhV/pTeIT5h/0=";
   };
 
-  # dune 3 is required for tests to pass
-  duneVersion = if doCheck then "3" else "2";
+  duneVersion = "3";
 
   nativeBuildInputs = [ cppo ];
   buildInputs = [ astring cmdliner fpath result tyxml odoc-parser fmt ];