diff --git a/.github/workflows/ci-post-merge.yml b/.github/workflows/ci-post-merge.yml
index 78056006..7064f093 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@d9be7d8cda89035c9c843f78bd44d4f72d8403d4 # v2.79.7
+        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
         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@d9be7d8cda89035c9c843f78bd44d4f72d8403d4 # v2.79.7
+        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
         with:
           tool: cargo-hack,cargo-minimal-versions
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7856c5de..64da7772 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@d9be7d8cda89035c9c843f78bd44d4f72d8403d4 # v2.79.7
+        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
         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@d9be7d8cda89035c9c843f78bd44d4f72d8403d4 # v2.79.7
+        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
         with:
           tool: just
 
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 8084e24a..d38311b0 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@d9be7d8cda89035c9c843f78bd44d4f72d8403d4 # v2.79.7
+        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
         with:
           tool: cargo-llvm-cov
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index b42f2280..22a0cc20 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@d9be7d8cda89035c9c843f78bd44d4f72d8403d4 # v2.79.7
+        uses: taiki-e/install-action@e49978b799e49ff429d162b7a30601a569ab6538 # v2.81.1
         with:
           tool: just