diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 30258b7..70da11a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -216,6 +216,23 @@ jobs:
           version: latest
           args: --all-targets --all-features
 
+  unknown-features-cfg:
+    name: Check for unknown features in cfg attributes and macros
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: nightly
+
+      - name: Check for unknown features
+        env:
+          RUSTFLAGS: "-D unexpected-cfgs"
+        run: cargo +nightly check -Z unstable-options -Z check-cfg=features --tests
+
   version_bump:
     name: Ensure (MAJOR) tag is used when making an API breaking change
     runs-on: ubuntu-latest