diff --git a/.github/workflows/ci-post-merge.yml b/.github/workflows/ci-post-merge.yml
index d9680fc3..273c2227 100644
--- a/.github/workflows/ci-post-merge.yml
+++ b/.github/workflows/ci-post-merge.yml
@@ -115,7 +115,7 @@ jobs:
           toolchain: nightly
 
       - name: Install cargo-hack & cargo-minimal-versions
-        uses: taiki-e/install-action@v1
+        uses: taiki-e/install-action@v2
         with:
           tool: cargo-hack,cargo-minimal-versions
 
@@ -132,7 +132,7 @@ jobs:
         uses: actions-rust-lang/setup-rust-toolchain@v1
 
       - name: Install cargo-nextest
-        uses: taiki-e/install-action@v1
+        uses: taiki-e/install-action@v2
         with: { tool: cargo-nextest }
 
       - name: Test with cargo-nextest
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 74315e6a..66efbb13 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -57,7 +57,7 @@ jobs:
         with:
           toolchain: ${{ matrix.version }}
 
-      - uses: taiki-e/install-action@v1
+      - uses: taiki-e/install-action@v2
         with: { tool: cargo-hack }
 
       - name: Generate Cargo.lock
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index a516f1c2..f000fd65 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -23,7 +23,7 @@ jobs:
           components: llvm-tools-preview
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@v2.18.9
+        uses: taiki-e/install-action@v2
         with:
           tool: cargo-llvm-cov