diff --git a/.github/workflows/publish_pure_python.yml b/.github/workflows/publish_pure_python.yml
index 3123cf4..4262985 100644
--- a/.github/workflows/publish_pure_python.yml
+++ b/.github/workflows/publish_pure_python.yml
@@ -98,6 +98,7 @@ jobs:
       - id: set-env
         if: ${{ inputs.env != '' }}
         run: |
+          python -m pip install -U pip
           python -m pip install PyYAML
           echo $SET_ENV_SCRIPT | base64 --decode > set_env.py
           python set_env.py "${{ inputs.env }}"