diff --git a/.travis.yml b/.travis.yml
index 1357740..0b73093 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,15 @@ matrix:
     - os: osx
       osx_image: xcode9.2
       sudo: required
+      env: SWIFT_SNAPSHOT=4.0.3
+    - os: linux
+      dist: trusty
+      sudo: required
+      env: SWIFT_SNAPSHOT=swift-4.1-DEVELOPMENT-SNAPSHOT-2018-02-06-a
+    - os: osx
+      osx_image: xcode9.2
+      sudo: required
+      env: SWIFT_SNAPSHOT=swift-4.1-DEVELOPMENT-SNAPSHOT-2018-02-06-a
 
 script:
   - ./build.sh
diff --git a/Package.swift b/Package.swift
index 6962b61..55a7bc5 100644
--- a/Package.swift
+++ b/Package.swift
@@ -20,9 +20,9 @@
 import PackageDescription
 
 var dependencies: [Package.Dependency] = [
-    .package(url: "https://github.com/IBM-Swift/LoggerAPI.git", .upToNextMinor(from: "1.7.0")),
+    .package(url: "https://github.com/IBM-Swift/LoggerAPI.git", from: "2.0.0"),
     .package(url: "https://github.com/IBM-Swift/BlueSocket.git", .upToNextMinor(from: "0.12.0")),
-    .package(url: "https://github.com/IBM-Swift/CCurl.git", .upToNextMinor(from: "0.4.0")),
+    .package(url: "https://github.com/IBM-Swift/CCurl.git", from: "1.0.0"),
     .package(url: "https://github.com/IBM-Swift/BlueSSLService.git", .upToNextMinor(from: "0.12.0"))
 ]
 
diff --git a/Sources/KituraNet/BufferList.swift b/Sources/KituraNet/BufferList.swift
index 1254c00..0541c19 100644
--- a/Sources/KituraNet/BufferList.swift
+++ b/Sources/KituraNet/BufferList.swift
@@ -90,7 +90,11 @@ public class BufferList {
         
         let result = min(length, localData.length - byteIndex)
         let bytes = localData.bytes.assumingMemoryBound(to: UInt8.self) + byteIndex
-        UnsafeMutableRawPointer(buffer).copyBytes(from: bytes, count: result)
+        #if swift(>=4.1)
+            UnsafeMutableRawPointer(buffer).copyMemory(from: bytes, byteCount: result)
+        #else
+            UnsafeMutableRawPointer(buffer).copyBytes(from: bytes, count: result)
+        #endif
         byteIndex += result
         
         return result
diff --git a/Sources/KituraNet/IncomingSocketProcessor.swift b/Sources/KituraNet/IncomingSocketProcessor.swift
index b53bd9f..d1abcf2 100644
--- a/Sources/KituraNet/IncomingSocketProcessor.swift
+++ b/Sources/KituraNet/IncomingSocketProcessor.swift
@@ -29,7 +29,7 @@ public protocol IncomingSocketProcessor: class {
 
     /// A back reference to the `IncomingSocketHandler` processing the socket that
     /// this `IncomingDataProcessor` is processing.
-    weak var handler: IncomingSocketHandler? { get set }
+    var handler: IncomingSocketHandler? { get set }
 
     /// Process data read from the socket.
     ///