diff --git a/.github/actions/rust-test/action.yml b/.github/actions/rust-test/action.yml
index 35f67657..1f05c079 100644
--- a/.github/actions/rust-test/action.yml
+++ b/.github/actions/rust-test/action.yml
@@ -138,7 +138,7 @@ runs:
     # timeout budget on the heaviest coverage target (lib-q-zkp).
     - name: Install cargo-tarpaulin (if coverage enabled)
       if: inputs.run-coverage == 'true' && steps.coverage-skip.outputs.skip != 'true'
-      uses: taiki-e/install-action@6c6fd71fe4fb72c3697d269963d0e15df8adedad # v2.85.10
+      uses: taiki-e/install-action@ba47c86ac325773530516bb756137ac718732518 # v2.86.5
       with:
         tool: cargo-tarpaulin