diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e9cfaaabc..c1b02c3cd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
     - uses: actions/checkout@a12a3943b4bdde767164f792f33f40b04645d846
     - name: Install Rust (stable)
-      uses: actions-rs/toolchain@v1
+      uses: actions-rs/toolchain@b2417cde72dcf67f306c0ae8e0828a81bf0b189f
       with:
         toolchain: stable
         override: true
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@a12a3943b4bdde767164f792f33f40b04645d846
-      - uses: actions-rs/toolchain@v1
+      - uses: actions-rs/toolchain@b2417cde72dcf67f306c0ae8e0828a81bf0b189f
         with:
           toolchain: nightly
           profile: minimal
@@ -58,7 +58,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@a12a3943b4bdde767164f792f33f40b04645d846
-      - uses: actions-rs/toolchain@v1
+      - uses: actions-rs/toolchain@b2417cde72dcf67f306c0ae8e0828a81bf0b189f
         with:
           toolchain: stable
           profile: minimal
@@ -75,7 +75,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@a12a3943b4bdde767164f792f33f40b04645d846
-      - uses: actions-rs/toolchain@v1
+      - uses: actions-rs/toolchain@b2417cde72dcf67f306c0ae8e0828a81bf0b189f
         with:
           toolchain: nightly
           profile: minimal
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2347c3be5..af73fd16f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -35,7 +35,7 @@ jobs:
         sudo apt-get update
         sudo apt-get install -y --no-install-recommends xz-utils liblz4-tool musl-tools
     - name: Install Rust
-      uses: actions-rs/toolchain@v1
+      uses: actions-rs/toolchain@b2417cde72dcf67f306c0ae8e0828a81bf0b189f
       with:
         toolchain: stable
         profile: minimal