diff --git a/.travis.yml b/.travis.yml
index bd405dd10..b54fd343a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode9.4
+osx_image: xcode10.2
 before_install: true
 install: true
 branches:
diff --git a/Cartfile b/Cartfile
index 4121fdefe..a49846062 100644
--- a/Cartfile
+++ b/Cartfile
@@ -1,2 +1,2 @@
-github "ReactiveCocoa/ReactiveObjC" ~> 3.1.0
-github "ReactiveCocoa/ReactiveSwift" ~> 4.0.0
+github "ReactiveCocoa/ReactiveObjC" ~> 3.1.1
+github "ReactiveCocoa/ReactiveSwift" ~> 5.0.0
diff --git a/Cartfile.private b/Cartfile.private
index 19c18060a..1e1218acc 100644
--- a/Cartfile.private
+++ b/Cartfile.private
@@ -1,3 +1,3 @@
 github "jspahrsummers/xcconfigs" "3d9d996"
-github "Quick/Quick" ~> 1.3
-github "Quick/Nimble" ~> 7.1.3
+github "Quick/Quick" ~> 2.0
+github "Quick/Nimble" ~> 8.0.0
diff --git a/Cartfile.resolved b/Cartfile.resolved
index 1e1d4c030..71e36ca14 100644
--- a/Cartfile.resolved
+++ b/Cartfile.resolved
@@ -1,6 +1,6 @@
-github "Quick/Nimble" "v7.1.3"
-github "Quick/Quick" "v1.3.1"
-github "ReactiveCocoa/ReactiveObjC" "3.1.0"
-github "ReactiveCocoa/ReactiveSwift" "4.0.0"
-github "antitypical/Result" "4.0.0"
+github "Quick/Nimble" "v8.0.1"
+github "Quick/Quick" "v2.0.0"
+github "ReactiveCocoa/ReactiveObjC" "3.1.1"
+github "ReactiveCocoa/ReactiveSwift" "5.0.1"
+github "antitypical/Result" "4.1.0"
 github "jspahrsummers/xcconfigs" "3d9d99634cae6d586e272543d527681283b33eb0"
diff --git a/Carthage/Checkouts/Nimble b/Carthage/Checkouts/Nimble
index 9c1379fdc..43304bf2b 160000
--- a/Carthage/Checkouts/Nimble
+++ b/Carthage/Checkouts/Nimble
@@ -1 +1 @@
-Subproject commit 9c1379fdcd58c4f2278aea5e029394ba9a2b8f07
+Subproject commit 43304bf2b1579fd555f2fdd51742771c1e4f2b98
diff --git a/Carthage/Checkouts/Quick b/Carthage/Checkouts/Quick
index b060679e7..0b4ed6c70 160000
--- a/Carthage/Checkouts/Quick
+++ b/Carthage/Checkouts/Quick
@@ -1 +1 @@
-Subproject commit b060679e70d13c3c7dcd124201b5b1b34ce6f340
+Subproject commit 0b4ed6c706dd0cce923b5019a605a9bcc6b1b600
diff --git a/Carthage/Checkouts/ReactiveObjC b/Carthage/Checkouts/ReactiveObjC
index e46eef2ab..27a725483 160000
--- a/Carthage/Checkouts/ReactiveObjC
+++ b/Carthage/Checkouts/ReactiveObjC
@@ -1 +1 @@
-Subproject commit e46eef2abdea29e344f9d2daec4f212d8bbe6abe
+Subproject commit 27a7254837bb01122b51aac7c4c3961973351ca0
diff --git a/Carthage/Checkouts/ReactiveSwift b/Carthage/Checkouts/ReactiveSwift
index 4f6a12ae6..c37950dc5 160000
--- a/Carthage/Checkouts/ReactiveSwift
+++ b/Carthage/Checkouts/ReactiveSwift
@@ -1 +1 @@
-Subproject commit 4f6a12ae6762e825b0e19a4f7076eafa43847e6e
+Subproject commit c37950dc5020544c58d4bf47c0d028893686b9e6
diff --git a/Carthage/Checkouts/Result b/Carthage/Checkouts/Result
index 8fc088dcf..2ca499ba4 160000
--- a/Carthage/Checkouts/Result
+++ b/Carthage/Checkouts/Result
@@ -1 +1 @@
-Subproject commit 8fc088dcf72802801efeecba76ea8fb041fb773d
+Subproject commit 2ca499ba456795616fbc471561ff1d963e6ae160
diff --git a/ReactiveObjCBridge.xcodeproj/project.pbxproj b/ReactiveObjCBridge.xcodeproj/project.pbxproj
index 8fd034204..6cb5a64b1 100644
--- a/ReactiveObjCBridge.xcodeproj/project.pbxproj
+++ b/ReactiveObjCBridge.xcodeproj/project.pbxproj
@@ -623,31 +623,31 @@
 				ORGANIZATIONNAME = GitHub;
 				TargetAttributes = {
 					57A4D1AF1BA13D7A00F7D4B1 = {
-						LastSwiftMigration = 0830;
+						LastSwiftMigration = 1010;
 					};
 					7DFBED021CDB8C9500EE435B = {
 						CreatedOnToolsVersion = 7.3.1;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 1010;
 					};
 					A9B315531B3940610001CB9C = {
 						CreatedOnToolsVersion = 7.0;
-						LastSwiftMigration = 0830;
+						LastSwiftMigration = 1010;
 					};
 					D04725E919E49ED7006002AA = {
 						CreatedOnToolsVersion = 6.1;
-						LastSwiftMigration = 0830;
+						LastSwiftMigration = 1010;
 					};
 					D04725F419E49ED7006002AA = {
 						CreatedOnToolsVersion = 6.1;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 1010;
 					};
 					D047260B19E49F82006002AA = {
 						CreatedOnToolsVersion = 6.1;
-						LastSwiftMigration = 0830;
+						LastSwiftMigration = 1010;
 					};
 					D047261519E49F82006002AA = {
 						CreatedOnToolsVersion = 6.1;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 1010;
 					};
 				};
 			};
@@ -656,6 +656,7 @@
 			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				English,
 				en,
 			);
 			mainGroup = D04725E019E49ED7006002AA;
@@ -828,6 +829,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -848,6 +850,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Test;
 		};
@@ -868,6 +871,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -888,6 +892,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Profile;
 		};
@@ -903,6 +908,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -918,6 +924,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Test;
 		};
@@ -933,6 +940,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -948,6 +956,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Profile;
 		};
@@ -968,6 +977,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -988,6 +998,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Test;
 		};
@@ -1008,6 +1019,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -1028,6 +1040,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Profile;
 		};
@@ -1047,7 +1060,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.reactivecocoa.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(PROJECT_NAME)";
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -1072,7 +1085,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "org.reactivecocoa.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(PROJECT_NAME)";
 				SWIFT_COMPILATION_MODE = wholemodule;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -1093,6 +1106,7 @@
 				FRAMEWORK_VERSION = A;
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -1109,6 +1123,7 @@
 				FRAMEWORK_VERSION = A;
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -1124,6 +1139,7 @@
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -1139,6 +1155,7 @@
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -1155,6 +1172,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -1171,6 +1189,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -1185,6 +1204,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -1199,6 +1219,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -1217,7 +1238,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.reactivecocoa.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(PROJECT_NAME)";
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -1238,6 +1259,7 @@
 				FRAMEWORK_VERSION = A;
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Profile;
 		};
@@ -1253,6 +1275,7 @@
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Profile;
 		};
@@ -1269,6 +1292,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Profile;
 		};
@@ -1283,6 +1307,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Profile;
 		};
@@ -1298,10 +1323,10 @@
 				CODE_SIGNING_REQUIRED = NO;
 				CURRENT_PROJECT_VERSION = 1;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
-				MACOSX_DEPLOYMENT_TARGET = 10.9;
+				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.reactivecocoa.$(PRODUCT_NAME:rfc1034identifier)-Tests";
 				PRODUCT_NAME = "$(PROJECT_NAME)";
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -1322,6 +1347,7 @@
 				FRAMEWORK_VERSION = A;
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Test;
 		};
@@ -1337,6 +1363,7 @@
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Test;
 		};
@@ -1353,6 +1380,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridge/Info.plist;
 				MODULEMAP_FILE = "$(SRCROOT)/ReactiveObjCBridge/module.modulemap";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Test;
 		};
@@ -1367,6 +1395,7 @@
 				);
 				INFOPLIST_FILE = ReactiveObjCBridgeTests/Info.plist;
 				PRODUCT_NAME = "$(PROJECT_NAME)Tests";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Test;
 		};
diff --git a/ReactiveObjCBridge.xcodeproj/xcshareddata/xcschemes/ReactiveObjCBridge-watchOS.xcscheme b/ReactiveObjCBridge.xcodeproj/xcshareddata/xcschemes/ReactiveObjCBridge-watchOS.xcscheme
index 1a42c43b3..e7e319498 100644
--- a/ReactiveObjCBridge.xcodeproj/xcshareddata/xcschemes/ReactiveObjCBridge-watchOS.xcscheme
+++ b/ReactiveObjCBridge.xcodeproj/xcshareddata/xcschemes/ReactiveObjCBridge-watchOS.xcscheme
@@ -3,9 +3,51 @@
    LastUpgradeVersion = "0940"
    version = "1.3">
    <BuildAction
-      parallelizeBuildables = "YES"
-      buildImplicitDependencies = "YES">
+      parallelizeBuildables = "NO"
+      buildImplicitDependencies = "NO">
       <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "D03579991B2B788F005D26AE"
+               BuildableName = "Result.framework"
+               BlueprintName = "Result-watchOS"
+               ReferencedContainer = "container:Carthage/Checkouts/Result/Result.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "A9B315531B3940610001CB9C"
+               BuildableName = "ReactiveSwift.framework"
+               BlueprintName = "ReactiveSwift-watchOS"
+               ReferencedContainer = "container:Carthage/Checkouts/ReactiveSwift/ReactiveSwift.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "A9B315531B3940610001CB9C"
+               BuildableName = "ReactiveObjC.framework"
+               BlueprintName = "ReactiveObjC-watchOS"
+               ReferencedContainer = "container:Carthage/Checkouts/ReactiveObjC/ReactiveObjC.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
          <BuildActionEntry
             buildForTesting = "YES"
             buildForRunning = "YES"
@@ -29,6 +71,15 @@
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
       </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "A9B315531B3940610001CB9C"
+            BuildableName = "ReactiveObjCBridge.framework"
+            BlueprintName = "ReactiveObjCBridge-watchOS"
+            ReferencedContainer = "container:ReactiveObjCBridge.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
       <AdditionalOptions>
       </AdditionalOptions>
    </TestAction>