diff --git a/.github/workflows/harness.yml b/.github/workflows/harness.yml
index 8bda2f4..1a7fbfd 100644
--- a/.github/workflows/harness.yml
+++ b/.github/workflows/harness.yml
@@ -166,7 +166,7 @@ jobs:
         with:
           toolchain: stable
       - uses: Swatinem/rust-cache@d1527c8f67ef9af357290475d4af4b0fab8f12e0 # v2
-      - uses: taiki-e/install-action@86f7a0ffb25f40114606501a311ebcfaf882ea32 # v2
+      - uses: taiki-e/install-action@c509219cf42fba86913069efd0ade2458c59337b # v2
         with:
           tool: cargo-mutants
       - name: Mutate the engines that decide findings; fail below the caught-rate floor