diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 06b1286..cd8e959 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,9 +12,10 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        elixir: [1.15.5]
+        elixir: [1.15.7]
         otp: [26.0.2]
     steps:
+    - uses: actions/checkout@v2
     - name: Set up Elixir
       uses: erlef/setup-beam@v1
       with: