diff --git a/.github/workflows/code-butler.yaml b/.github/workflows/code-butler.yaml
index 5573af7008..7858054095 100644
--- a/.github/workflows/code-butler.yaml
+++ b/.github/workflows/code-butler.yaml
@@ -18,6 +18,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
           cmd: review
+          model: gpt-4-1106-preview
   chat:
     if: startsWith(github.event.comment.body, '/chat')
     runs-on: ubuntu-latest
@@ -27,4 +28,5 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
           cmd: chat
+          model: gpt-4-1106-preview
           comment_body: ${{ github.event.comment.body }}