diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 812ee81..5ae6988 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -12,16 +12,14 @@ jobs:
     name: Build & release wheels
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
       - name: Update python
         uses: actions/setup-python@v4
-        with:
-          python-version: '3.12'
       - name: Update pipx
         run: |
           python3 -m pip install pipx
           python3 -m pipx ensurepath
-      - name: Checkout
-        uses: actions/checkout@v4
       - name: Install CLI
         run: pipx install ./cli/
       - run: build charms.json
\ No newline at end of file
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..e4fba21
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.12