diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index ed02500..2d61f11 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -57,7 +57,7 @@ jobs:
           components: llvm-tools-preview
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@v2.86.1
+        uses: taiki-e/install-action@v2.86.5
         with:
           tool: cargo-llvm-cov
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 671e7e9..bf9ca8a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -464,7 +464,7 @@ jobs:
         uses: sigstore/cosign-installer@v3
 
       - name: Install cargo-component
-        uses: taiki-e/install-action@v2.86.1
+        uses: taiki-e/install-action@v2.86.5
         with:
           tool: cargo-component
 
@@ -473,7 +473,7 @@ jobs:
       # run-position-hold < 0.6) before it ships, not just built. (Per review:
       # install, don't skip — the skip in build-components.sh is only a fallback.)
       - name: Install wasmtime
-        uses: taiki-e/install-action@v2.86.1
+        uses: taiki-e/install-action@v2.86.5
         with:
           tool: wasmtime
 
diff --git a/.github/workflows/verification-gate.yml b/.github/workflows/verification-gate.yml
index e9d6eb3..5a818e3 100644
--- a/.github/workflows/verification-gate.yml
+++ b/.github/workflows/verification-gate.yml
@@ -134,7 +134,7 @@ jobs:
       # before reaching the script).
       - name: Install cargo-llvm-cov
         if: steps.scope.outputs.run_full == 'true'
-        uses: taiki-e/install-action@v2.86.1
+        uses: taiki-e/install-action@v2.86.5
         with:
           tool: cargo-llvm-cov