diff --git a/.github/workflows/preview-release.yaml b/.github/workflows/preview-release.yaml
index 4b135798..705fba37 100644
--- a/.github/workflows/preview-release.yaml
+++ b/.github/workflows/preview-release.yaml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             target: native
           - os: macos-latest
             target: native
@@ -29,16 +29,7 @@ jobs:
         with:
           submodules: true
           fetch-depth: 0
-      - if: runner.os == 'macOS'
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.63.0
-          target: aarch64-apple-darwin
-          default: true
-          override: true
-          profile: minimal
-      - if: runner.os != 'macOS'
-        uses: actions-rs/toolchain@v1
+      - uses: actions-rs/toolchain@v1
         with:
           toolchain: 1.63.0
           override: true
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 8a8a0209..1ef26a6f 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             target: native
           - os: macos-latest
             target: native