diff --git a/.github/workflows/check-release.yaml b/.github/workflows/check-release.yaml
index 9bee6f1f..9aa7f7a6 100644
--- a/.github/workflows/check-release.yaml
+++ b/.github/workflows/check-release.yaml
@@ -22,13 +22,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        config:
-          - {os: ubuntu-latest,  r: 'release'}
+        # config:
+        #   - {os: ubuntu-latest,  r: 'release'}
           # - {os: macOS-latest,   r: 'release', http-user-agent: 'release', ONLY_READ_TESTS: true}
           # - {os: windows-latest, r: 'release'}
-        # os: [ubuntu-latest]
-        # include:
-        # - os: ubuntu-latest
+        os: [ubuntu-latest]
+        include:
+        - os: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v2