diff --git a/lifecycle/ak b/lifecycle/ak
index 30b08bc4c..6e7060d2c 100755
--- a/lifecycle/ak
+++ b/lifecycle/ak
@@ -80,6 +80,8 @@ elif [[ "$1" == "restore" ]]; then
 elif [[ "$1" == "bash" ]]; then
     /bin/bash
 elif [[ "$1" == "test" ]]; then
+    # https://github.com/python-poetry/poetry/issues/4493
+    pip install platformdirs
     poetry install
     touch /unittest.xml
     chown authentik:authentik /unittest.xml