diff --git a/pkgs/development/ocaml-modules/ocsigen-toolkit/default.nix b/pkgs/development/ocaml-modules/ocsigen-toolkit/default.nix
index aaa68c214460..b5638229e0c4 100644
--- a/pkgs/development/ocaml-modules/ocsigen-toolkit/default.nix
+++ b/pkgs/development/ocaml-modules/ocsigen-toolkit/default.nix
@@ -5,18 +5,12 @@
 stdenv.mkDerivation rec {
  pname = "ocsigen-toolkit";
  name = "ocaml${ocaml.version}-${pname}-${version}";
- version = "3.2.0";
+ version = "3.3.4";
 
  propagatedBuildInputs = [ calendar js_of_ocaml-ppx_deriving_json eliom ];
  nativeBuildInputs = [ ocaml findlib opaline eliom ];
 
- # Remove widgets not compatible with jsoo 4.1.0
- # https://github.com/ocsigen/ocsigen-toolkit/issues/221
- preConfigure = ''
-   rm src/widgets/ot_{carousel,drawer,swipe,tongue}.eliom{,i}
- '';
-
-  strictDeps = true;
+ strictDeps = true;
 
  installPhase = ''
     runHook preInstall
@@ -31,7 +25,7 @@ stdenv.mkDerivation rec {
     owner = "ocsigen";
     repo = pname;
     rev = version;
-    sha256 = "sha256:13n0y8a80bl94la4lnp9dr2x7b8plhm17g9zgf0l6x42g3886pw7";
+    hash = "sha256-6ccu8WJxUwpR5YyB4j1jQPWba8GhQDxuw+IDHswQpSA=";
   };
 
   meta = {