diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 078a5169..df80d708 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,10 +19,10 @@ jobs:
             # use old linux so that the shared library versioning is more portable
             artifact_name: capa
             asset_name: linux
-          - os: windows-2022
+          - os: windows-2019
             artifact_name: capa.exe
             asset_name: windows
-          - os: macos-10.15
+          - os: macos-11
             # use older macOS for assumed better portability
             artifact_name: capa
             asset_name: macos