diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 031ffc9..cf8dee6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,6 +46,12 @@ jobs:
         command:  check
         args: --no-default-features --features std
 
+    - name: check attributes
+      uses: actions-rs/cargo@v1
+      with:
+        command:  check
+        args: --features attributes
+
     - name: tests
       uses: actions-rs/cargo@v1
       with: