diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 66131f7..05cd53b 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -20,7 +20,6 @@ jobs:
         config:
           - {os: macOS-latest,    r: 'release'}
           - {os: windows-latest,  r: 'release'}
-          - {os: windows-latest,  r: '3.6'}
           - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
           - {os: ubuntu-latest,   r: 'release'}
           - {os: ubuntu-latest,   r: 'oldrel-1'}