diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 389943d7..f652c703 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -51,7 +51,6 @@ jobs:
           verbose: true
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: true
-          os: ${{ matrix.os }}
 
   # TODO: once github actions supports windows and macos docker containers, we can
   # merge these in to the above step's matrix, including adding windows support