diff --git a/.github/workflows/publish_to_pypi.yml b/.github/workflows/publish_to_pypi.yml
index 85708aa..a6cf1f2 100644
--- a/.github/workflows/publish_to_pypi.yml
+++ b/.github/workflows/publish_to_pypi.yml
@@ -1,11 +1,13 @@
-name: Publish Python distributions to PyPI
+# Reference for this action:
+#   https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#publishing-to-package-registries
+name: Publish to PyPI
 
-# Only trigger, when the build CI workflow succeeded
 on:
-  workflow_run:
-    workflows: ["CI"]
-    types:
-      - completed
+  release:
+    types: [ published ]
+
+permissions:
+  contents: read
 
 jobs:
   deploy:
@@ -13,18 +15,22 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.10"
+          python-version: '3.x'
+
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install setuptools wheel twine
-      - name: Build and publish
-        if: startsWith(github.ref, 'refs/tags')  # Only runs if commit is tagged
-        env:
-          TWINE_USERNAME: __token__
-          TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
-        run: |
-          python setup.py sdist bdist_wheel
-          twine upload dist/*
\ No newline at end of file
+          pip install setuptools wheel
+
+      - name: Build package
+        run: python setup.py sdist bdist_wheel
+
+      - name: Publish package
+        # GitHub recommends pinning 3rd party actions to a commit SHA.
+        uses: pypa/gh-action-pypi-publish@37f50c210e3d2f9450da2cd423303d6a14a6e29f
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_API_TOKEN }}
\ No newline at end of file
diff --git a/iblutil/__init__.py b/iblutil/__init__.py
index 56dbcc9..4ded0a3 100644
--- a/iblutil/__init__.py
+++ b/iblutil/__init__.py
@@ -1 +1 @@
-__version__ = "1.3.2"
\ No newline at end of file
+__version__ = "1.3.3"
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 5139575..853dcc0 100644
--- a/setup.py
+++ b/setup.py
@@ -1,25 +1,27 @@
-from setuptools import setup, find_packages
 import sys
 from pathlib import Path
 
+from setuptools import setup, find_packages
+
 CURRENT_DIRECTORY = Path(__file__).parent.absolute()
 
 CURRENT_PYTHON = sys.version_info[:2]
 REQUIRED_PYTHON = (3, 8)
-if CURRENT_PYTHON < REQUIRED_PYTHON:
-    sys.stderr.write("""
+VER_ERR_MSG = """
 ==========================
 Unsupported Python version
 ==========================
 This version of iblutil requires Python {}.{}, but you're trying to
 install it on Python {}.{}.
-""".format(*(REQUIRED_PYTHON + CURRENT_PYTHON)))
+"""
+if CURRENT_PYTHON < REQUIRED_PYTHON:
+    sys.stderr.write(VER_ERR_MSG.format(*REQUIRED_PYTHON + CURRENT_PYTHON))
     sys.exit(1)
 
-with open('README.md', 'r') as f:
+with open("README.md", "r") as f:
     long_description = f.read()
 
-with open('requirements.txt') as f:
+with open("requirements.txt") as f:
     require = [x.strip() for x in f.readlines() if not x.startswith('git+')]