diff --git a/.github/workflows/ruff.yml b/.github/workflows/ruff.yml
index 095f637..f6a82e5 100644
--- a/.github/workflows/ruff.yml
+++ b/.github/workflows/ruff.yml
@@ -9,11 +9,12 @@ jobs:
     - uses: actions/setup-python@v4
       with:
         python-version: "3.9"
+    - name: Install Ruff
+      run: pip install ruff
     - name: Run Ruff with auto-fix
-      uses: chartboost/ruff-action@v1
-      with:
-        args: --fix  # Automatically apply safe fixes
-    - uses: stefanzweifel/git-auto-commit-action@v4
+      run: ruff check . --fix  # Use `ruff check` with the `--fix` argument to auto-fix
+    - name: Commit changes if there are any
+      uses: stefanzweifel/git-auto-commit-action@v4
       with:
         commit_message: 'style fixes by ruff'
-        file_pattern: '*.py'  # Ensure only Python files are committed
\ No newline at end of file
+        file_pattern: '*.py'
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index dc20ece..fdd2ede 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ dependencies = [
     "numpy",
     "pandas",
     "seaborn==0.11.2",
-    "matplotlib==3.8.4",
+    "matplotlib==3.7.3",
     "statannotations==0.6.0",
     "scipy"
 ]