diff --git a/.swift-version b/.swift-version
index 7d5c902..bf77d54 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-4.1
+4.2
diff --git a/.travis.yml b/.travis.yml
index 6bd995d..3068c19 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: swift
 os: osx
-osx_image: xcode9.3
+osx_image: xcode10
 
 podfile: Example/Podfile
 script: xcodebuild -workspace Example/MaLiang.xcworkspace -scheme MaLiang-Example -sdk iphonesimulator ONLY_ACTIVE_ARCH=NO