diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 731f95c..296819a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -52,7 +52,7 @@ jobs:
           architecture: 'x64'
       - name: Install poetry
         # see https://github.com/marketplace/actions/setup-poetry
-        uses: Gr1N/setup-poetry@v8
+        uses: Gr1N/setup-poetry@v9
         with:
           poetry-version: ${{ env.POETRY_VERSION }}
       - name: Install dependencies
@@ -105,7 +105,7 @@ jobs:
           architecture: 'x64'
       - name: Install poetry
         # see https://github.com/marketplace/actions/setup-poetry
-        uses: Gr1N/setup-poetry@v8
+        uses: Gr1N/setup-poetry@v9
         with:
           poetry-version: ${{ env.POETRY_VERSION }}
       - name: Install dependencies