diff --git a/.github/workflows/alpha.yml b/.github/workflows/alpha.yml
index 9264c7bd..ee0ad394 100644
--- a/.github/workflows/alpha.yml
+++ b/.github/workflows/alpha.yml
@@ -33,7 +33,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust Stable
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@1.77.0
 
       - name: Add Rust Target
         run: rustup target add ${{ matrix.target }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 79edb0fe..f1c1b55d 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -30,7 +30,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust Stable
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@1.77.0
 
       - name: Add Rust Target
         run: rustup target add ${{ matrix.target }}