diff --git a/.circleci/config.yml b/.circleci/config.yml
index 7e87bb00afa..3c1975eaa50 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -646,7 +646,7 @@ jobs:
   cmake_macos_cpu:
     <<: *binary_common
     macos:
-      xcode: "9.0"
+      xcode: "9.4.1"
     steps:
       - checkout_merge
       - designate_upload_channel
diff --git a/.circleci/config.yml.in b/.circleci/config.yml.in
index 06ad2326dc7..f05022e47ca 100644
--- a/.circleci/config.yml.in
+++ b/.circleci/config.yml.in
@@ -646,7 +646,7 @@ jobs:
   cmake_macos_cpu:
     <<: *binary_common
     macos:
-      xcode: "9.0"
+      xcode: "9.4.1"
     steps:
       - checkout_merge
       - designate_upload_channel