diff --git a/.github/workflows/instance_test.yml b/.github/workflows/instance_test.yml
index b665239..f028690 100644
--- a/.github/workflows/instance_test.yml
+++ b/.github/workflows/instance_test.yml
@@ -22,7 +22,6 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{matrix.python-version}}
-          cache: 'poetry'
 
       - name: Install poetry
         run: pipx install poetry
diff --git a/.github/workflows/mypy.yml b/.github/workflows/mypy.yml
index 3874836..1036c8c 100644
--- a/.github/workflows/mypy.yml
+++ b/.github/workflows/mypy.yml
@@ -22,7 +22,6 @@ jobs:
       uses: actions/setup-python@v5
       with:
         python-version: ${{matrix.python-version}}
-        cache: 'poetry'
 
     - name: Install poetry
       run: pipx install poetry