diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3b9df4c..d33b4ee 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -143,6 +143,9 @@ jobs:
         cpy:
           - "cp310"
 
+    env:
+      _BUILD_DIR: "/opt/homebrew/opt/icu4c@${{ env.LIBICU_VERSION }}"
+
     steps:
       - uses: actions/checkout@v4