diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 9d65e77..e6212ec 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -78,7 +78,7 @@ jobs:
 
       - name: Install tarpaulin
         if: matrix.rust == 'stable'
-        uses: taiki-e/install-action@v2
+        uses: taiki-e/install-action@v2.85.5
         with:
           tool: cargo-tarpaulin
 
@@ -119,7 +119,7 @@ jobs:
           cache-on-failure: false
 
       - name: Install cargo-audit
-        uses: taiki-e/install-action@v2
+        uses: taiki-e/install-action@v2.85.5
         with:
           tool: cargo-audit