diff --git a/.github/workflows/marreq-ci.yml b/.github/workflows/marreq-ci.yml
index 79a14bf4..7b6c76c1 100644
--- a/.github/workflows/marreq-ci.yml
+++ b/.github/workflows/marreq-ci.yml
@@ -29,7 +29,7 @@ jobs:
         run: cargo fmt --all -- --check
 
       - name: Install cargo-deny
-        uses: taiki-e/install-action@1e29709c0ec63babbe8f266397a465f29a825f91 # v2.87.31
+        uses: taiki-e/install-action@68a389c788b2cd04016ce8c80ee23b80d2ab3d68 # v2.88.1
         with:
           tool: cargo-deny
 
@@ -289,7 +289,7 @@ jobs:
           cache-on-failure: true
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@1e29709c0ec63babbe8f266397a465f29a825f91 # v2.87.31
+        uses: taiki-e/install-action@68a389c788b2cd04016ce8c80ee23b80d2ab3d68 # v2.88.1
         with:
           tool: cargo-llvm-cov