diff --git a/tools_webrtc/ios/internal.client.webrtc/iOS64_Debug.json b/tools_webrtc/ios/internal.client.webrtc/iOS64_Debug.json
index 1214f6e9fe..51e5e0a00f 100644
--- a/tools_webrtc/ios/internal.client.webrtc/iOS64_Debug.json
+++ b/tools_webrtc/ios/internal.client.webrtc/iOS64_Debug.json
@@ -2,7 +2,7 @@
   "comments": [
     "Tests for 64-bit iOS devices."
   ],
-  "xcode version": "8.0",
+  "xcode version": "9.0",
   "gn_args": [
     "goma_dir=\"$(goma_dir)\"",
     "is_component_build=false",
@@ -22,7 +22,7 @@
     {
       "include": "real_device_tests.json",
       "device type": "iPhone 6s",
-      "os": "10.0.1"
+      "os": "10.3.3"
     }
   ]
 }
diff --git a/tools_webrtc/ios/internal.tryserver.webrtc/ios_arm64.json b/tools_webrtc/ios/internal.tryserver.webrtc/ios_arm64.json
index 1214f6e9fe..51e5e0a00f 100644
--- a/tools_webrtc/ios/internal.tryserver.webrtc/ios_arm64.json
+++ b/tools_webrtc/ios/internal.tryserver.webrtc/ios_arm64.json
@@ -2,7 +2,7 @@
   "comments": [
     "Tests for 64-bit iOS devices."
   ],
-  "xcode version": "8.0",
+  "xcode version": "9.0",
   "gn_args": [
     "goma_dir=\"$(goma_dir)\"",
     "is_component_build=false",
@@ -22,7 +22,7 @@
     {
       "include": "real_device_tests.json",
       "device type": "iPhone 6s",
-      "os": "10.0.1"
+      "os": "10.3.3"
     }
   ]
 }