diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 16e2d7f..7d9527e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     name: Lint, Typecheck & Test
     runs-on: ubuntu-latest
     container:
-      image: pyflowx-ci:latest
+      image: pyflowx-ci:1.0.0
       env:
         UV_LINK_MODE: copy
     steps: