diff --git a/.github/workflows/nightly-release.yml b/.github/workflows/nightly-release.yml
index 010a2c22..c7870d23 100644
--- a/.github/workflows/nightly-release.yml
+++ b/.github/workflows/nightly-release.yml
@@ -78,7 +78,7 @@ jobs:
         run: rustup toolchain install nightly-2026-03-30 --component llvm-tools --no-self-update
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@a6b2e2dcd845ddd7f509ce4f3ed3d922b80cc5d9  # v2.84.0
+        uses: taiki-e/install-action@41049aa56687c35e0afa74eed4f09cec4f9afabf  # v2.85.2
         with:
           tool: cargo-llvm-cov
 
diff --git a/.github/workflows/pr-backend-tests.yml b/.github/workflows/pr-backend-tests.yml
index 27aa2e1e..79cfa4fc 100644
--- a/.github/workflows/pr-backend-tests.yml
+++ b/.github/workflows/pr-backend-tests.yml
@@ -24,7 +24,7 @@ jobs:
         run: rustup toolchain install nightly-2026-03-30 --component llvm-tools --no-self-update
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@a6b2e2dcd845ddd7f509ce4f3ed3d922b80cc5d9  # v2.84.0
+        uses: taiki-e/install-action@41049aa56687c35e0afa74eed4f09cec4f9afabf  # v2.85.2
         with:
           tool: cargo-llvm-cov
 
diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index d4696260..472f570d 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -90,7 +90,7 @@ jobs:
         run: rustup toolchain install nightly-2026-03-30 --component llvm-tools --no-self-update
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@a6b2e2dcd845ddd7f509ce4f3ed3d922b80cc5d9  # v2.84.0
+        uses: taiki-e/install-action@41049aa56687c35e0afa74eed4f09cec4f9afabf  # v2.85.2
         with:
           tool: cargo-llvm-cov