diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d659f5c..9ebce61 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -127,7 +127,7 @@ jobs:
           components: llvm-tools-preview
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@v2
+        uses: taiki-e/install-action@v2.85.5
         with:
           tool: cargo-llvm-cov
 
@@ -182,7 +182,7 @@ jobs:
       - uses: actions/checkout@v7
 
       - name: Install cargo-machete
-        uses: taiki-e/install-action@v2
+        uses: taiki-e/install-action@v2.85.5
         with:
           tool: cargo-machete