diff --git a/pkgs/development/compilers/elm/packages/elm-optimize-level-2/default.nix b/pkgs/development/compilers/elm/packages/elm-optimize-level-2/default.nix
index f72119f41d9a..dcc5777d4127 100644
--- a/pkgs/development/compilers/elm/packages/elm-optimize-level-2/default.nix
+++ b/pkgs/development/compilers/elm/packages/elm-optimize-level-2/default.nix
@@ -7,7 +7,7 @@
 
 buildNpmPackage (finalAttrs: {
   pname = "elm-optimize-level-2";
-  version = "0.3.5-unstable-2022-04-05";
+  version = "0.3.4-unstable-2022-04-05";
 
   src = fetchFromGitHub {
     owner = "mdgriffith";