diff --git a/.github/workflows/docker_images.yml b/.github/workflows/docker_images.yml
index efafe411..791eefd6 100644
--- a/.github/workflows/docker_images.yml
+++ b/.github/workflows/docker_images.yml
@@ -18,7 +18,7 @@ jobs:
 
       - name: Install stable toolchain
         id: toolchain
-        uses: dtolnay/rust-toolchain@master
+        uses: dtolnay/rust-toolchain@stable
 
       - run: rustup override set ${{steps.toolchain.outputs.name}}
 
@@ -41,7 +41,7 @@ jobs:
 
       - name: Install stable toolchain
         id: toolchain
-        uses: dtolnay/rust-toolchain@master
+        uses: dtolnay/rust-toolchain@stable
 
       - run: rustup override set ${{steps.toolchain.outputs.name}}
 
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index ed5f37f8..9d74ab65 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -16,7 +16,7 @@ jobs:
 
       - name: Install stable toolchain
         id: toolchain
-        uses: dtolnay/rust-toolchain@master
+        uses: dtolnay/rust-toolchain@stable
 
       - run: rustup override set ${{steps.toolchain.outputs.name}}
       - run: rustup component add rustfmt