diff --git a/.swift-version b/.swift-version
index 7d5c902e..bf77d549 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-4.1
+4.2
diff --git a/Package.resolved b/Package.resolved
index 0df7272c..873b00f7 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -6,17 +6,17 @@
         "repositoryURL": "https://github.com/vapor/core.git",
         "state": {
           "branch": null,
-          "revision": "3b72f2cc3fb21d505fbe97215418951a8e4a2871",
-          "version": "3.2.1"
+          "revision": "7f56a09995bf3c8df562be456bdcda405d9d0678",
+          "version": "3.4.1"
         }
       },
       {
         "package": "Runtime",
         "repositoryURL": "https://github.com/wickwirew/Runtime.git",
         "state": {
-          "branch": null,
-          "revision": "23357609f0df427d870bb4bd22ac14e0a4ea1346",
-          "version": "0.7.1"
+          "branch": "swift42",
+          "revision": "a34cd8f9a1e76e0d0c32f47abae49d6134830825",
+          "version": null
         }
       },
       {
@@ -24,8 +24,8 @@
         "repositoryURL": "https://github.com/apple/swift-nio.git",
         "state": {
           "branch": null,
-          "revision": "77dc77b9b5cdddfb3c385c5ee6cb74153d284967",
-          "version": "1.7.2"
+          "revision": "c6acf77fc9a310c0ebf8d5f73f285d1639801d2f",
+          "version": "1.9.0"
         }
       },
       {
diff --git a/Package.swift b/Package.swift
index 0ac09520..2dd78244 100644
--- a/Package.swift
+++ b/Package.swift
@@ -9,10 +9,10 @@ let package = Package(
     ],
 
     dependencies: [
-        .package(url: "https://github.com/wickwirew/Runtime.git", from: "0.6.0"),
+        .package(url: "https://github.com/wickwirew/Runtime.git", .branch("swift42")),
 
         // ⏱ Promises and reactive-streams in Swift built for high-performance and scalability.
-        .package(url: "https://github.com/vapor/core.git", from: "3.0.0"),
+        .package(url: "https://github.com/vapor/core.git", from: "3.4.4"),
     ],
 
     targets: [
diff --git a/Tests/GraphQLTests/FieldExecutionStrategyTests/FieldExecutionStrategyTests.swift b/Tests/GraphQLTests/FieldExecutionStrategyTests/FieldExecutionStrategyTests.swift
index 7502f1db..bd742d19 100644
--- a/Tests/GraphQLTests/FieldExecutionStrategyTests/FieldExecutionStrategyTests.swift
+++ b/Tests/GraphQLTests/FieldExecutionStrategyTests/FieldExecutionStrategyTests.swift
@@ -180,7 +180,7 @@ class FieldExecutionStrategyTests: XCTestCase {
     }
 
     func testSerialFieldExecutionStrategyWithSingleField() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -196,7 +196,7 @@ class FieldExecutionStrategyTests: XCTestCase {
     }
 
     func testSerialFieldExecutionStrategyWithSingleFieldError() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -212,7 +212,7 @@ class FieldExecutionStrategyTests: XCTestCase {
     }
 
     func testSerialFieldExecutionStrategyWithMultipleFields() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -228,7 +228,7 @@ class FieldExecutionStrategyTests: XCTestCase {
     }
 
     func testSerialFieldExecutionStrategyWithMultipleFieldErrors() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -249,7 +249,7 @@ class FieldExecutionStrategyTests: XCTestCase {
     }
 
     func testConcurrentDispatchFieldExecutionStrategyWithSingleField() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -265,7 +265,7 @@ class FieldExecutionStrategyTests: XCTestCase {
     }
 
     func testConcurrentDispatchFieldExecutionStrategyWithSingleFieldError() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -281,7 +281,7 @@ class FieldExecutionStrategyTests: XCTestCase {
     }
 
     func testConcurrentDispatchFieldExecutionStrategyWithMultipleFields() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -297,7 +297,7 @@ class FieldExecutionStrategyTests: XCTestCase {
     }
 
     func testConcurrentDispatchFieldExecutionStrategyWithMultipleFieldErrors() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
diff --git a/Tests/GraphQLTests/HelloWorldTests/HelloWorldTests.swift b/Tests/GraphQLTests/HelloWorldTests/HelloWorldTests.swift
index 7c532db8..0953b4ac 100644
--- a/Tests/GraphQLTests/HelloWorldTests/HelloWorldTests.swift
+++ b/Tests/GraphQLTests/HelloWorldTests/HelloWorldTests.swift
@@ -16,7 +16,7 @@ class HelloWorldTests : XCTestCase {
     )
 
     func testHello() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -33,7 +33,7 @@ class HelloWorldTests : XCTestCase {
     }
 
     func testBoyhowdy() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
diff --git a/Tests/GraphQLTests/StarWarsTests/StarWarsIntrospectionTests.swift b/Tests/GraphQLTests/StarWarsTests/StarWarsIntrospectionTests.swift
index 03f3b36a..d4b0f22c 100644
--- a/Tests/GraphQLTests/StarWarsTests/StarWarsIntrospectionTests.swift
+++ b/Tests/GraphQLTests/StarWarsTests/StarWarsIntrospectionTests.swift
@@ -5,7 +5,7 @@ import NIO
 
 class StarWarsIntrospectionTests : XCTestCase {
     func testIntrospectionTypeQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -137,7 +137,7 @@ class StarWarsIntrospectionTests : XCTestCase {
     }
 
     func testIntrospectionQueryTypeQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -165,7 +165,7 @@ class StarWarsIntrospectionTests : XCTestCase {
     }
 
     func testIntrospectionDroidTypeQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -189,7 +189,7 @@ class StarWarsIntrospectionTests : XCTestCase {
     }
 
     func testIntrospectionDroidKindQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -215,7 +215,7 @@ class StarWarsIntrospectionTests : XCTestCase {
     }
 
     func testIntrospectionCharacterKindQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -241,7 +241,7 @@ class StarWarsIntrospectionTests : XCTestCase {
     }
 
     func testIntrospectionDroidFieldsQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -316,7 +316,7 @@ class StarWarsIntrospectionTests : XCTestCase {
     }
 
     func testIntrospectionDroidNestedFieldsQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -410,7 +410,7 @@ class StarWarsIntrospectionTests : XCTestCase {
     }
 
     func testIntrospectionFieldArgsQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -505,7 +505,7 @@ class StarWarsIntrospectionTests : XCTestCase {
     }
 
     func testIntrospectionDroidDescriptionQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
diff --git a/Tests/GraphQLTests/StarWarsTests/StarWarsQueryTests.swift b/Tests/GraphQLTests/StarWarsTests/StarWarsQueryTests.swift
index 11df23a2..389db02e 100644
--- a/Tests/GraphQLTests/StarWarsTests/StarWarsQueryTests.swift
+++ b/Tests/GraphQLTests/StarWarsTests/StarWarsQueryTests.swift
@@ -5,7 +5,7 @@ import NIO
 
 class StarWarsQueryTests : XCTestCase {    
     func testHeroNameQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -29,7 +29,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testHeroNameAndFriendsQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -63,7 +63,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testNestedQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -125,7 +125,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testFetchLukeQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -149,7 +149,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testOptionalVariable() throws{
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -196,7 +196,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testFetchSomeIDQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -257,7 +257,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testFetchLukeAliasedQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -281,7 +281,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testFetchLukeAndLeiaAliasedQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -311,7 +311,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testDuplicateFieldsQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -345,7 +345,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testUseFragmentQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -381,7 +381,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testCheckTypeOfR2Query() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -407,7 +407,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testCheckTypeOfLukeQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -433,7 +433,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testSecretBackstoryQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -466,7 +466,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testSecretBackstoryListQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -525,7 +525,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testSecretBackstoryAliasQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }
@@ -558,7 +558,7 @@ class StarWarsQueryTests : XCTestCase {
     }
 
     func testNonNullableFieldsQuery() throws {
-        let eventLoopGroup = MultiThreadedEventLoopGroup(numThreads: 1)
+        let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
         defer {
             XCTAssertNoThrow(try eventLoopGroup.syncShutdownGracefully())
         }