diff --git a/scripts/bench.sh b/scripts/bench.sh
index 669564b42..416cfb36d 100755
--- a/scripts/bench.sh
+++ b/scripts/bench.sh
@@ -2,4 +2,4 @@
 # Can be used as a drop in replacement for `cargo bench`.
 # For example, `./scripts/bench.sh` will run all benchmarks.
 # or `./scripts/bench.sh M31` will run only the M31 benchmarks.
-RUSTFLAGS="-Awarnings -C target-cpu=native -C target-feature=+avx512f -C opt-level=2" cargo bench $@
+RUSTFLAGS="-Awarnings -C target-cpu=native -C target-feature=+avx512f -C opt-level=3" cargo bench $@