diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 6909464..98e67dd 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -22,11 +22,11 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v4
+        uses: github/codeql-action/init@v4.36.1
         with:
           languages: rust
           build-mode: none
       - name: Perform CodeQL analysis
-        uses: github/codeql-action/analyze@v4
+        uses: github/codeql-action/analyze@v4.36.1
         with:
           category: "/language:rust"
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index 4b51043..b4aab2e 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@nightly
-      - uses: taiki-e/install-action@v2
+      - uses: taiki-e/install-action@v2.81.2
         with:
           tool: cargo-fuzz
       - uses: Swatinem/rust-cache@v2