diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 88582a1..ea839cd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
   upgrade:
     strategy:
       matrix:
-        os: [macos-10.15, macos-11, macos-12, macos-13, macos-14]
+        os: [macos-12, macos-13, macos-14]
     runs-on: ${{ matrix.os }}
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it