diff --git a/.github/workflows/python-testpypi-publish.yml b/.github/workflows/python-testpypi-publish.yml
index b3a4e2c..965d4b3 100644
--- a/.github/workflows/python-testpypi-publish.yml
+++ b/.github/workflows/python-testpypi-publish.yml
@@ -17,10 +17,10 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install setuptools wheel twine
+          pip install setuptools wheel build twine
       - name: Build package
         run: |
-          python setup.py sdist bdist_wheel
+          python -m build
       - name: Publish package
         env:
           TWINE_USERNAME: __token__
diff --git a/setup.cfg b/setup.cfg
index fdac9e4..850fb4e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = eark_validator_core
-version = 0.1
+version = 0.1.1
 description = E-ARK Python Information Package validation library.
 author = Darren Dignam
 author_email = darren@openpreservation.org