diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6b3f82c553a..3f22d6b6c35 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -337,7 +337,7 @@ jobs:
   binary_macos_wheel:
     <<: *binary_common
     macos:
-      xcode: "9.4.1"
+      xcode: "12.0"
     steps:
       - checkout_merge
       - designate_upload_channel
@@ -397,7 +397,7 @@ jobs:
   binary_macos_conda:
     <<: *binary_common
     macos:
-      xcode: "9.4.1"
+      xcode: "12.0"
     steps:
       - checkout_merge
       - designate_upload_channel
@@ -739,7 +739,7 @@ jobs:
   unittest_macos_cpu:
     <<: *binary_common
     macos:
-      xcode: "9.4.1"
+      xcode: "12.0"
     resource_class: large
     steps:
       - checkout
@@ -815,7 +815,7 @@ jobs:
   cmake_macos_cpu:
     <<: *binary_common
     macos:
-      xcode: "9.4.1"
+      xcode: "12.0"
     steps:
       - checkout_merge
       - designate_upload_channel
diff --git a/.circleci/config.yml.in b/.circleci/config.yml.in
index 741deac8837..0984b8bb961 100644
--- a/.circleci/config.yml.in
+++ b/.circleci/config.yml.in
@@ -337,7 +337,7 @@ jobs:
   binary_macos_wheel:
     <<: *binary_common
     macos:
-      xcode: "9.4.1"
+      xcode: "12.0"
     steps:
       - checkout_merge
       - designate_upload_channel
@@ -397,7 +397,7 @@ jobs:
   binary_macos_conda:
     <<: *binary_common
     macos:
-      xcode: "9.4.1"
+      xcode: "12.0"
     steps:
       - checkout_merge
       - designate_upload_channel
@@ -739,7 +739,7 @@ jobs:
   unittest_macos_cpu:
     <<: *binary_common
     macos:
-      xcode: "9.4.1"
+      xcode: "12.0"
     resource_class: large
     steps:
       - checkout
@@ -815,7 +815,7 @@ jobs:
   cmake_macos_cpu:
     <<: *binary_common
     macos:
-      xcode: "9.4.1"
+      xcode: "12.0"
     steps:
       - checkout_merge
       - designate_upload_channel