diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b37f285..a437c5e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,7 +32,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install flake8 flake8-pyproject ruff black
+        python -m pip install flake8 flake8-pyproject ruff==0.15.22 black
     - name: Lint with flake8
       run: |
         flake8 .