diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9e7dc25..e412aa3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04, macos-10.15, macos-11]
+        os: [ubuntu-20.04, ubuntu-22.04, macos-11]
         compiler: [gcc, clang]
         configure: [--disable-locale, --enable-locale]
     runs-on: ${{ matrix.os }}