diff --git a/.github/workflows/manual.yml b/.github/workflows/manual.yml
index afc2d814..d1cccf0c 100644
--- a/.github/workflows/manual.yml
+++ b/.github/workflows/manual.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-10.15]
+        os: [ubuntu-latest, windows-latest, macos-13]
 
     steps:
       - uses: actions/checkout@v2