diff --git a/pkgs/by-name/vu/vunnel/package.nix b/pkgs/by-name/vu/vunnel/package.nix
index 5543834ea5a6..fff20fecc568 100644
--- a/pkgs/by-name/vu/vunnel/package.nix
+++ b/pkgs/by-name/vu/vunnel/package.nix
@@ -20,7 +20,9 @@ python3.pkgs.buildPythonApplication rec {
   pythonRelaxDeps = [
     "defusedxml"
     "ijson"
+    "importlib-metadata"
     "sqlalchemy"
+    "websockets"
     "xsdata"
   ];