diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 027e7114..6a39ce18 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-16.04, ubuntu-18.04, ubuntu-20.04, macos-10.13, macos-10.14, macos-10.15, windows-2016, windows-2019]
+        os: [ubuntu-16.04, ubuntu-18.04, ubuntu-20.04, macos-10.15, windows-2016, windows-2019]
         include:
           - os: ubuntu-20.04
             env: