diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 61a3230..032ba02 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -104,6 +104,7 @@ jobs:
       contents: read
     steps:
     - uses: actions/checkout@v4
+    - uses: dtolnay/rust-toolchain@stable
     - uses: Swatinem/rust-cache@v2
     - name: Check formatting
       run: cargo fmt --all --check