Can't build demo

[chokokatana]

Following the instructions at https://touchlab.co/skie-demo I first ran pod install, then opened the xcode project and tried to build and run on an existing simulator. The error message was:

Build target SwiftLint of project Pods with configuration Debug
/Users/gradha/source/ios/SKIEDemoSample/ios/Pods/Pods.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 12.0 to 17.0.99. (in target 'SwiftLint' from project 'Pods')

/Users/gradha/source/ios/SKIEDemoSample/ios/Pods/Pods.xcodeproj: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 12.0 to 17.0.99.