diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b19a5d2a..bf46844f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,7 +34,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@1.95.0
       # Prebuilt cargo-deny — do not cargo install. Pin Action commit (CodeQL).
-      - uses: taiki-e/install-action@ba47c86ac325773530516bb756137ac718732518 # v2.86.5
+      - uses: taiki-e/install-action@37f7c5781271959fb65b6b35224e28652ff2b63d # v2.87.0
         with:
           # 0.18.x cannot parse rustsec CVSS 4.0 advisories (2026).
           tool: cargo-deny@0.20.2
@@ -58,7 +58,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       # Not in taiki-e TOOLS.md; install-action falls back to cargo-binstall
       # (GitHub Release prebuilt). Do not cargo install.
-      - uses: taiki-e/install-action@ba47c86ac325773530516bb756137ac718732518 # v2.86.5
+      - uses: taiki-e/install-action@37f7c5781271959fb65b6b35224e28652ff2b63d # v2.87.0
         with:
           tool: ast-grep@0.45.1
       - name: ast-grep fixture self-test
@@ -207,7 +207,7 @@ jobs:
           workspaces: ". -> target/cov"
       # Prebuilt binary — do not `cargo install` (compiles llvm-cov from crates.io).
       # Pin commit (CodeQL: unpinned 3rd-party Action tags are not immutable).
-      - uses: taiki-e/install-action@ba47c86ac325773530516bb756137ac718732518 # v2.86.5
+      - uses: taiki-e/install-action@37f7c5781271959fb65b6b35224e28652ff2b63d # v2.87.0
         with:
           tool: cargo-llvm-cov@0.6.14,cargo-crap@0.4.3
       - name: coverage (line gate)
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 61e4af79..e3b62199 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -63,7 +63,7 @@ jobs:
         uses: dtolnay/rust-toolchain@1.95.0 # nixpkgs/crane rustc pin — not Dependabot
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28 # v4.37.8
+        uses: github/codeql-action/init@cdf488f595d80d6e07e03d4674febd5ab45fa938 # v4.37.9
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -72,6 +72,6 @@ jobs:
           queries: security-extended
 
       - name: Perform CodeQL analysis
-        uses: github/codeql-action/analyze@db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28 # v4.37.8
+        uses: github/codeql-action/analyze@cdf488f595d80d6e07e03d4674febd5ab45fa938 # v4.37.9
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index 4eeeb2e5..2d48f829 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -39,7 +39,7 @@ jobs:
 
       # Prebuilt cargo-fuzz — do not cargo install (compiles from crates.io
       # inside the 20-min job timeout). Pin Action commit (CodeQL).
-      - uses: taiki-e/install-action@ba47c86ac325773530516bb756137ac718732518 # v2.86.5
+      - uses: taiki-e/install-action@37f7c5781271959fb65b6b35224e28652ff2b63d # v2.87.0
         with:
           tool: cargo-fuzz@0.13.2