diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e83bdb3..d298b50 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -71,7 +71,7 @@ jobs:
         uses: Swatinem/rust-cache@v2
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@v2
+        uses: taiki-e/install-action@v2.85.3
         with:
           tool: cargo-llvm-cov
 
@@ -85,7 +85,7 @@ jobs:
       - uses: actions/checkout@v7
 
       - name: Install cargo-audit
-        uses: taiki-e/install-action@v2
+        uses: taiki-e/install-action@v2.85.3
         with:
           tool: cargo-audit