diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bbf5d9c..6f9ccc6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,7 +42,7 @@ jobs:
         uses: taiki-e/install-action@cargo-hack
       - run: cargo build --all --all-features --all-targets
       - run: cargo hack build --feature-powerset --no-dev-deps
-      - run: cargo hack build --feature-powerset --no-dev-deps --target thumbv7m-none-eabi --skip std,default
+      - run: cargo hack build --feature-powerset --no-dev-deps --target thumbv7m-none-eabi --skip std,default,memchr
       - run: cargo test
       - run: cargo test --no-default-features
       - run: cargo test --no-default-features --features alloc