diff --git a/.github/workflows/oxipng.yml b/.github/workflows/oxipng.yml
index a507ec81..1ca64ffe 100644
--- a/.github/workflows/oxipng.yml
+++ b/.github/workflows/oxipng.yml
@@ -128,7 +128,9 @@ jobs:
         if: matrix.target == 'x86_64-unknown-linux-gnu'
         run: >
           set -o pipefail;
-          cargo hack clippy --no-deps --all-targets --feature-powerset --exclude-features sanity-checks --message-format=json -- -D warnings
+          cargo hack clippy --no-deps --all-targets --feature-powerset \
+            --exclude-features sanity-checks,system-libdeflate \
+            --message-format=json -- -D warnings
           | clippy-sarif
           | tee clippy-results.sarif
           | sarif-fmt