diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 97fb42cdc..aea50cba4 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -26,27 +26,27 @@ jobs:
       fail-fast: false
       matrix:
         config:
-          - {os: ubuntu-latest,  r: '3.4'}
-          - {os: ubuntu-latest,  r: '3.5'}
-          - {os: ubuntu-latest,  r: '3.6'}
-          - {os: ubuntu-latest,  r: '3.6.1'}
-          - {os: ubuntu-latest,  r: '3.6.2'}
-          - {os: ubuntu-latest,  r: '3.6.3'}
-          - {os: ubuntu-latest,  r: '4.0'}
-          - {os: ubuntu-latest,  r: '4.0.4'}
-          - {os: ubuntu-latest,  r: '4.0.5'}
-          - {os: ubuntu-latest,  r: '4.1'}
-          - {os: ubuntu-latest,  r: '4.1.1'}
-          - {os: ubuntu-latest,  r: '4.1.2'}
-          - {os: ubuntu-latest,  r: '4.1.3'}
-          - {os: ubuntu-latest,  r: '4.2'}
-          - {os: ubuntu-latest,  r: '4.2.1'}
-          - {os: ubuntu-latest,  r: '4.2.2'}
-          - {os: ubuntu-latest,  r: '4.2.3'}
-          - {os: ubuntu-latest,  r: '4.3'}
-          - {os: ubuntu-latest,  r: '4.3.1'}
-          - {os: ubuntu-latest,  r: '4.3.2'}
-          - {os: ubuntu-latest,  r: 'devel'}
+          - {os: windows-latest,  r: '3.4'}
+          - {os: windows-latest,  r: '3.5'}
+          - {os: windows-latest,  r: '3.6'}
+          - {os: windows-latest,  r: '3.6.1'}
+          - {os: windows-latest,  r: '3.6.2'}
+          - {os: windows-latest,  r: '3.6.3'}
+          - {os: windows-latest,  r: '4.0'}
+          - {os: windows-latest,  r: '4.0.4'}
+          - {os: windows-latest,  r: '4.0.5'}
+          - {os: windows-latest,  r: '4.1'}
+          - {os: windows-latest,  r: '4.1.1'}
+          - {os: windows-latest,  r: '4.1.2'}
+          - {os: windows-latest,  r: '4.1.3'}
+          - {os: windows-latest,  r: '4.2'}
+          - {os: windows-latest,  r: '4.2.1'}
+          - {os: windows-latest,  r: '4.2.2'}
+          - {os: windows-latest,  r: '4.2.3'}
+          - {os: windows-latest,  r: '4.3'}
+          - {os: windows-latest,  r: '4.3.1'}
+          - {os: windows-latest,  r: '4.3.2'}
+          - {os: windows-latest,  r: 'devel'}
 
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}