Update iOS version

Author: onmyway133

circle.yml

@@ -7,6 +7,6 @@ test:
     - set -o pipefail && xcodebuild -project Cache.xcodeproj -scheme "Cache-macOS" -sdk macosx clean build
     - set -o pipefail && xcodebuild -project Cache.xcodeproj -scheme "Cache-macOS" -sdk macosx -enableCodeCoverage YES test
     - set -o pipefail && xcodebuild -project Cache.xcodeproj -scheme "Cache-iOS" -sdk iphonesimulator clean build
-    - set -o pipefail && xcodebuild -project Cache.xcodeproj -scheme "Cache-iOS" -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 8,OS=11.0' -enableCodeCoverage YES test
+    - set -o pipefail && xcodebuild -project Cache.xcodeproj -scheme "Cache-iOS" -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 8,OS=11.0.1' -enableCodeCoverage YES test
     - set -o pipefail && xcodebuild -project Cache.xcodeproj -scheme "Cache-tvOS" -destination 'platform=tvOS Simulator,name=Apple TV,OS=11.0' clean build
     - set -o pipefail && xcodebuild -project Cache.xcodeproj -scheme "Cache-tvOS" -destination 'platform=tvOS Simulator,name=Apple TV,OS=11.0' -enableCodeCoverage YES test