diff --git a/hosts/world-dev/configuration.nix b/hosts/world-dev/configuration.nix
index 677831e..917e3ae 100644
--- a/hosts/world-dev/configuration.nix
+++ b/hosts/world-dev/configuration.nix
@@ -15,7 +15,7 @@
   nixpkgs.overlays = [
     (import (fetchGit {
        url = https://bitbucket.fem.tu-ilmenau.de/scm/~clerie/workadventure-nix.git;
-       ref = "0d731f0624bf2032b2a1c99667c13c273823c090";
+       ref = "9c08f674a62e29c33fa566df02df0cea37fb71ba";
     } + "/overlay.nix"))
   ];