diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 24fa5ba..f474758 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -132,4 +132,5 @@ jobs:
 
       - name: Test anderson
         run: |
+          ~/poetry/bin/poetry install
           ~/poetry/bin/poetry run pytest . -vv