diff --git a/README.md b/README.md
index 2ea5437..635685e 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
+        toolchain: stable
       - run: cargo test --all-features
 ```