diff --git a/circle.yml b/circle.yml
index 20b88e7..f97bc7c 100644
--- a/circle.yml
+++ b/circle.yml
@@ -4,7 +4,7 @@ general:
     - "PlayerKit_Example-PlayerKit-Example.log"
 machine:
   xcode:
-    version: 8.3.2
+    version: 9.0
 
 dependencies:
   override: