diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index a3a7d77..930fe48 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -10,20 +10,31 @@ on:
 
 jobs:
   python_format:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     container:
-      image: rootproject/root:6.26.00-ubuntu20.04
+      image: rootproject/root:6.32.00-ubuntu24.04
       options: --user 0 # run as root
 
     steps:
+      - uses: actions/checkout@v3
+
       - name: apt update
         run: apt-get -y update
 
       - name: Install missing software
-        run: apt-get install -y git python3-pip && pip install black==24.4.2
+        run: apt-get install -y git python3-pip python3-venv
 
-      - uses: actions/checkout@v2
+      - name: Create venv
+        shell: bash
+        run: |
+          cd $GITHUB_WORKSPACE
+          python3 -m venv venv
+          source venv/bin/activate
+          pip install black==24.4.2
 
       - name: Check Python formatting
         shell: bash
-        run: cd $GITHUB_WORKSPACE && bash scripts/python-formatting.sh
+        run: |
+          cd $GITHUB_WORKSPACE
+          source venv/bin/activate
+          bash scripts/python-formatting.sh
diff --git a/scripts/python-formatting.sh b/scripts/python-formatting.sh
index 5aa1169..286f35d 100644
--- a/scripts/python-formatting.sh
+++ b/scripts/python-formatting.sh
@@ -2,7 +2,7 @@
 
 FOUND_ISSUE=0
 
-for FILENAME in $(find . -path ./law -prune -o -name "*.py"); do
+for FILENAME in $(find . \( -path ./venv -o -path ./law \) -prune -o -name "*.py"); do
 	# only run the check if the filename ends with .py
 	if [[ ${FILENAME} == *.py ]]; then
 		echo "Checking ${FILENAME}"