diff --git a/.github/workflows/ci-post-merge.yml b/.github/workflows/ci-post-merge.yml
index 7064f093..69a0e7f2 100644
--- a/.github/workflows/ci-post-merge.yml
+++ b/.github/workflows/ci-post-merge.yml
@@ -66,7 +66,7 @@ jobs:
           toolchain: ${{ matrix.version }}
 
       - name: Install just, cargo-hack, cargo-nextest, cargo-ci-cache-clean
-        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154 # v2.81.8
         with:
           tool: just,cargo-hack,cargo-nextest,cargo-ci-cache-clean
 
@@ -125,7 +125,7 @@ jobs:
           toolchain: nightly
 
       - name: Install cargo-hack & cargo-minimal-versions
-        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154 # v2.81.8
         with:
           tool: cargo-hack,cargo-minimal-versions
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e834624a..01a2c573 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -75,7 +75,7 @@ jobs:
           toolchain: ${{ matrix.version.version }}
 
       - name: Install just, cargo-hack, cargo-nextest, cargo-ci-cache-clean
-        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154 # v2.81.8
         with:
           tool: just,cargo-hack,cargo-nextest,cargo-ci-cache-clean
 
@@ -133,7 +133,7 @@ jobs:
           toolchain: nightly
 
       - name: Install just
-        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154 # v2.81.8
         with:
           tool: just
 
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index d38311b0..a5cc1b26 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -25,7 +25,7 @@ jobs:
           components: llvm-tools-preview
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154 # v2.81.8
         with:
           tool: cargo-llvm-cov
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 22a0cc20..49699a62 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -80,7 +80,7 @@ jobs:
           toolchain: ${{ vars.RUST_VERSION_EXTERNAL_TYPES }}
 
       - name: Install just
-        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
+        uses: taiki-e/install-action@0631aa6515c7d545823c67cfae7ef4fc7f490154 # v2.81.8
         with:
           tool: just