diff --git a/.github/workflows/doc_check_on_pr.yml b/.github/workflows/doc_check_on_pr.yml
index 3e988d1a7..66831cfdf 100644
--- a/.github/workflows/doc_check_on_pr.yml
+++ b/.github/workflows/doc_check_on_pr.yml
@@ -24,7 +24,7 @@ jobs:
 
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.8.14"
+          python-version: "3.9"
 
       - run: python .github/workflows/scripts/check_doc_i18n.py -d docs/source
 
@@ -50,7 +50,7 @@ jobs:
 
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.8.14"
+          python-version: "3.9"
 
       # we use the versions in the main branch as the guide for versions to display
       # checkout will give your merged branch
diff --git a/.github/workflows/draft_github_release_post_after_merge.yml b/.github/workflows/draft_github_release_post_after_merge.yml
index fcdb51373..0ef75e13d 100644
--- a/.github/workflows/draft_github_release_post_after_merge.yml
+++ b/.github/workflows/draft_github_release_post_after_merge.yml
@@ -19,7 +19,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-python@v2
         with:
-          python-version: '3.8.14'
+          python-version: '3.9'
       - name: generate draft
         id: generate_draft
         run: |
diff --git a/.github/workflows/release_docker_after_publish.yml b/.github/workflows/release_docker_after_publish.yml
index 163cd825c..9a93e6a48 100644
--- a/.github/workflows/release_docker_after_publish.yml
+++ b/.github/workflows/release_docker_after_publish.yml
@@ -53,7 +53,7 @@ jobs:
 
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.8.14"
+          python-version: "3.9"
 
       - name: Install requests
         run: pip install requests
diff --git a/.github/workflows/release_nightly_on_schedule.yml b/.github/workflows/release_nightly_on_schedule.yml
index 30ffa22f6..910991b07 100644
--- a/.github/workflows/release_nightly_on_schedule.yml
+++ b/.github/workflows/release_nightly_on_schedule.yml
@@ -18,7 +18,7 @@ jobs:
 
     - uses: actions/setup-python@v2
       with:
-        python-version: '3.8.14'
+        python-version: '3.9'
 
     - run: |
         python .github/workflows/scripts/update_setup_for_nightly.py
@@ -43,7 +43,7 @@ jobs:
 
       - uses: actions/setup-python@v2
         with:
-          python-version: '3.8.14'
+          python-version: '3.9'
 
       - name: Install requests
         run: pip install requests
diff --git a/.github/workflows/release_pypi_after_merge.yml b/.github/workflows/release_pypi_after_merge.yml
index e41bc0544..4b82b1184 100644
--- a/.github/workflows/release_pypi_after_merge.yml
+++ b/.github/workflows/release_pypi_after_merge.yml
@@ -7,9 +7,6 @@ on:
       - 'version.txt'
     types:
       - closed
-permissions:
-  id-token: write
-  contents: read
 jobs:
   build-n-publish:
     if: github.event_name == 'workflow_dispatch' || github.repository == 'hpcaitech/ColossalAI' && github.event.pull_request.merged == true && github.base_ref == 'main'
@@ -21,7 +18,7 @@ jobs:
 
     - uses: actions/setup-python@v2
       with:
-        python-version: '3.8.14'
+        python-version: '3.9'
 
     - run: python setup.py sdist build
 
@@ -44,7 +41,7 @@ jobs:
 
       - uses: actions/setup-python@v2
         with:
-          python-version: '3.8.14'
+          python-version: '3.9'
 
       - name: Install requests
         run: pip install requests
diff --git a/.github/workflows/release_test_pypi_before_merge.yml b/.github/workflows/release_test_pypi_before_merge.yml
index d950c1d83..59c337115 100644
--- a/.github/workflows/release_test_pypi_before_merge.yml
+++ b/.github/workflows/release_test_pypi_before_merge.yml
@@ -5,26 +5,18 @@ on:
     paths:
       - 'version.txt'
 
-
-permissions:
-  id-token: write
-  contents: read
-
 jobs:
   build-n-publish:
     if: github.event_name == 'workflow_dispatch' || github.repository == 'hpcaitech/ColossalAI'
     name: Build and publish Python 🐍 distributions 📦 to Test PyPI
     runs-on: ubuntu-latest
     timeout-minutes: 20
-    permissions:
-      id-token: write
-      contents: read
     steps:
     - uses: actions/checkout@v2
 
     - uses: actions/setup-python@v2
       with:
-        python-version: '3.8.14'
+        python-version: '3.9'
 
     - name: add timestamp to the version
       id: prep-version
diff --git a/.github/workflows/report_leaderboard_to_lark.yml b/.github/workflows/report_leaderboard_to_lark.yml
index fbd077bd0..d6c19bdc6 100644
--- a/.github/workflows/report_leaderboard_to_lark.yml
+++ b/.github/workflows/report_leaderboard_to_lark.yml
@@ -17,7 +17,7 @@ jobs:
 
     - uses: actions/setup-python@v2
       with:
-        python-version: '3.8.14'
+        python-version: '3.9'
 
     - run: pip install requests matplotlib seaborn requests_toolbelt pytz
 
diff --git a/version.txt b/version.txt
index 4b9fcbec1..8f0916f76 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.5.1
+0.5.0