diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 2886451..e9a35d6 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -9,7 +9,6 @@ on:
   push:
     branches:
       - main
-      - master
     tags:
       - '*'
   pull_request:
@@ -90,6 +89,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+
       - name: Cache Rust and sccache
         uses: actions/cache@v4
         with: