diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6d89e26..ff750e4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,6 +33,7 @@ jobs:
       - name: Install Poetry
         uses: snok/install-poetry@v1
         with:
+          version: 1.3.2
           virtualenvs-create: true
           virtualenvs-in-project: true
       #----------------------------------------------
@@ -49,7 +50,10 @@ jobs:
       #----------------------------------------------
       - name: Install dependencies
         if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
-        run: poetry install --no-interaction --no-root
+        run: |
+          poetry run pip install setuptools==65.5.0
+          poetry run pip install gym==0.21.0
+          poetry install --no-interaction --no-root
       #----------------------------------------------
       # install your root project, if required
       #----------------------------------------------