diff --git a/README.md b/README.md
index 469a018..3841ca0 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: dtolnay/rust-toolchain@stable
-      - run: cargo test
+      - run: cargo test --all-features
 ```
 
 The selection of Rust toolchain is made based on the particular @rev of this