diff --git a/.github/workflows/auto_deploy_docs_pypi_onrelease.yml b/.github/workflows/auto_deploy_docs_pypi_onrelease.yml
index 3f45e0f9..06547978 100644
--- a/.github/workflows/auto_deploy_docs_pypi_onrelease.yml
+++ b/.github/workflows/auto_deploy_docs_pypi_onrelease.yml
@@ -68,6 +68,6 @@ jobs:
           python3 -m build --sdist --wheel --outdir dist/
 
       - name: Publish to PyPI
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}
diff --git a/.github/workflows/manual_deploy_pypi_only.yml b/.github/workflows/manual_deploy_pypi_only.yml
index 287087ba..d4437cbb 100644
--- a/.github/workflows/manual_deploy_pypi_only.yml
+++ b/.github/workflows/manual_deploy_pypi_only.yml
@@ -24,6 +24,6 @@ jobs:
           python3 -m build --sdist --wheel --outdir dist/
 
       - name: Publish to PyPI
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}
diff --git a/nltools/version.py b/nltools/version.py
index 9ff6beaa..ab393694 100644
--- a/nltools/version.py
+++ b/nltools/version.py
@@ -1,4 +1,4 @@
 """Specifies current version of nltools to be used by setup.py and __init__.py
 """
 
-__version__ = "0.5.0"
+__version__ = "0.5.1"