diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 3ab43a71..cc8945ac 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -37,10 +37,8 @@ jobs:
           - {os: ubuntu-latest, compiler: clang, version: '11'}
 
           # Windows builds
-          - {os: windows-2016,   compiler: msvc, version: '14.16',
-             boost-version: '1.72.0'}
-          - {os: windows-latest, compiler: msvc, version: '14.28',
-             boost-version: '1.72.0'}
+          - {os: windows-2020,   compiler: msvc }
+          - {os: windows-latest, compiler: msvc }
 
           # macOS builds
           - {os: macos-latest, compiler: clang}