diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index d9e55760..e3fc94ae 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -6,9 +6,9 @@ name: Ultralytics Actions
 
 on:
   push:
-    branches: [main, master]
+    branches: [main]
   pull_request:
-    branches: [main, master]
+    branches: [main]
     # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request
     types: [opened, closed, synchronize, review_requested]
 
@@ -21,7 +21,8 @@ jobs:
         with:
           token: ${{ secrets.GITHUB_TOKEN }} # automatically generated, do not modify
           python: true # format Python code and docstrings
-          markdown: true # format Markdown and YAML
+          markdown: true # format Markdown
+          prettier: true # format YAML
           spelling: false # check spelling
           links: false # check broken links
           summary: true  # print PR summary with GPT4 (requires 'openai_api_key' or 'openai_azure_api_key' and 'openai_azure_endpoint')
diff --git a/action.yml b/action.yml
index b118138c..156b47b2 100644
--- a/action.yml
+++ b/action.yml
@@ -71,12 +71,6 @@ runs:
         ref: ${{ github.head_ref || github.ref }}
         fetch-depth: 0
 
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3.x"
-        cache: "pip" # caching pip dependencies
-
     - name: Install Dependencies
       # Note tomli required for codespell with pyproject.toml
       if: github.event.action != 'closed'