diff --git a/.swift-version b/.swift-version
index 5186d070..bf77d549 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-4.0
+4.2
diff --git a/CocoaMQTT.xcodeproj/project.pbxproj b/CocoaMQTT.xcodeproj/project.pbxproj
index 4bbcd30a..265561aa 100644
--- a/CocoaMQTT.xcodeproj/project.pbxproj
+++ b/CocoaMQTT.xcodeproj/project.pbxproj
@@ -680,7 +680,7 @@
 				SDKROOT = iphoneos;
 				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.2;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -734,7 +734,7 @@
 				SDKROOT = iphoneos;
 				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.2;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -839,7 +839,7 @@
 				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_OBJC_INTERFACE_HEADER_NAME = "$(PROJECT_NAME)-Swift.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -866,7 +866,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_OBJC_INTERFACE_HEADER_NAME = "$(PROJECT_NAME)-Swift.h";
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -919,7 +919,7 @@
 				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_OBJC_INTERFACE_HEADER_NAME = "";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
@@ -945,7 +945,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_OBJC_INTERFACE_HEADER_NAME = "";
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
diff --git a/README.md b/README.md
index 06db94a2..a12a9e8e 100644
--- a/README.md
+++ b/README.md
@@ -3,15 +3,15 @@ CocoaMQTT
 ![PodVersion](https://img.shields.io/cocoapods/v/CocoaMQTT.svg)
 ![Platforms](https://img.shields.io/cocoapods/p/CocoaMQTT.svg)
 ![License](https://img.shields.io/cocoapods/l/BadgeSwift.svg?style=flat)
-![Swift version](https://img.shields.io/badge/swift-4.0-orange.svg)
+![Swift version](https://img.shields.io/badge/swift-4.2-orange.svg)
 
-MQTT v3.1.1 client library for iOS/macOS/tvOS  written with Swift 4.0
+MQTT v3.1.1 client library for iOS/macOS/tvOS  written with Swift 4
 
 
 Build
 =====
 
-Build with Xcode 9.1 / Swift 4.0
+Build with Xcode 10 / Swift 4.2
 
 
 Installation
@@ -34,7 +34,6 @@ Install using [Carthage](https://github.com/Carthage/Carthage) by adding the fol
 
 ````
 github "robbiehanson/CocoaAsyncSocket" "master"
-github "radex/SwiftyTimer" "master"
 github "emqtt/CocoaMQTT" "master"
 ````
 Then, run the following command: