diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index 2e2c581..07e3fd6 100644
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -43,7 +43,6 @@ jobs:
     strategy:
       matrix:
         cfg:
-          - { os: macOS-11, xcode: Xcode_12.5.1 }
           - { os: macOS-12, xcode: Xcode_13.4.1 }
           - { os: macOS-13, xcode: Xcode_14.3.1 }
           - { os: macOS-14, xcode: Xcode_15.3 }