diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3e006a0a..2cef2309 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,6 +21,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@d09bd5e6005b175076f227b13d9730d56e9dcfcb # tag=v4.0.0
         with:
+          python-version-file: .python-version
           cache: pip
 
       - name: Install dependencies
diff --git a/.python-version b/.python-version
new file mode 100644
index 00000000..c84ccce9
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.10.5