diff --git a/.circleci/config.yml b/.circleci/config.yml
index a557a40..0b82157 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2
 jobs:
   build-and-test:
     macos:
-      xcode: "10.2.0"
+      xcode: "10.3.0"
 
     steps:
       - checkout
diff --git a/Changelog.md b/Changelog.md
index 78a38a1..0342f1e 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -6,6 +6,10 @@ Current master
 
 - Nothing yet!
 
+5.0.1
+-----
+- Update to Swift 5.0 to build in CI
+
 5.0.0
 -----
 - Update to Swift 5.0 and Xcode 10.2 See [#59](https://github.com/RxSwiftCommunity/NSObject-Rx/pull/67) - [@fassko](https://github.com/fassko)
diff --git a/Demo/Demo.xcodeproj/project.pbxproj b/Demo/Demo.xcodeproj/project.pbxproj
index 3df524f..3e7dd43 100644
--- a/Demo/Demo.xcodeproj/project.pbxproj
+++ b/Demo/Demo.xcodeproj/project.pbxproj
@@ -178,7 +178,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0710;
-				LastUpgradeCheck = 1000;
+				LastUpgradeCheck = 1030;
 				ORGANIZATIONNAME = "Ash Furrow";
 				TargetAttributes = {
 					5E9E831A1BF79B3000C85B46 = {
@@ -193,7 +193,7 @@
 			};
 			buildConfigurationList = 5E9E83161BF79B3000C85B46 /* Build configuration list for PBXProject "Demo" */;
 			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
+			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
@@ -345,6 +345,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
@@ -392,7 +393,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -400,6 +401,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
@@ -440,7 +442,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				VALIDATE_PRODUCT = YES;
 			};
 			name = Release;
@@ -455,7 +457,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = io.reactivex.Demo;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -469,7 +471,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = io.reactivex.Demo;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
@@ -481,7 +483,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = io.reactivex.DemoTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -493,7 +495,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = io.reactivex.DemoTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
diff --git a/Demo/Demo.xcodeproj/xcshareddata/xcschemes/Demo.xcscheme b/Demo/Demo.xcodeproj/xcshareddata/xcschemes/Demo.xcscheme
index cfe2abd..78db302 100644
--- a/Demo/Demo.xcodeproj/xcshareddata/xcschemes/Demo.xcscheme
+++ b/Demo/Demo.xcodeproj/xcshareddata/xcschemes/Demo.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1000"
+   LastUpgradeVersion = "1030"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Demo/DemoTests/DemoTests.swift b/Demo/DemoTests/DemoTests.swift
index 32f93ea..d46491e 100644
--- a/Demo/DemoTests/DemoTests.swift
+++ b/Demo/DemoTests/DemoTests.swift
@@ -3,7 +3,13 @@ import Nimble
 import RxSwift
 import NSObject_Rx
 
-class DisposeBagTest: HasDisposeBag {}
+class DisposeBagTest: HasDisposeBag {
+    var disposeBag: DisposeBag
+    
+    init(disposeBag: DisposeBag) {
+        self.disposeBag = disposeBag
+    }
+}
 
 class Test: QuickSpec {
     override func spec() {
@@ -12,7 +18,7 @@ class Test: QuickSpec {
             var subject = NSObject()
             let disposeBag = DisposeBag()
             subject.rx.disposeBag = disposeBag
-            let subjectProtocol = DisposeBagTest()
+            let subjectProtocol = DisposeBagTest(disposeBag: disposeBag)
             subjectProtocol.disposeBag = disposeBag
             expect(subject.rx.disposeBag) === disposeBag
             expect(subjectProtocol.disposeBag) === disposeBag
@@ -28,7 +34,8 @@ class Test: QuickSpec {
             // Force the bag to deinit (and dispose itself).
             do {
                 let subject = NSObject()
-                let subjectProtocol = DisposeBagTest()
+                let disposeBag = DisposeBag()
+                let subjectProtocol = DisposeBagTest(disposeBag: disposeBag)
 
                 variable.subscribe(onNext: { _ in executed = true })
                     .disposed(by: subject.rx.disposeBag)
diff --git a/Demo/Podfile.lock b/Demo/Podfile.lock
index de7978c..74a9a68 100644
--- a/Demo/Podfile.lock
+++ b/Demo/Podfile.lock
@@ -1,6 +1,6 @@
 PODS:
-  - Nimble (8.0.1)
-  - "NSObject+Rx (5.0.0)":
+  - Nimble (8.0.2)
+  - "NSObject+Rx (5.0.1)":
     - RxSwift (~> 5.0)
   - Quick (2.1.0)
   - RxSwift (5.0.0)
@@ -22,11 +22,11 @@ EXTERNAL SOURCES:
     :path: "../"
 
 SPEC CHECKSUMS:
-  Nimble: 45f786ae66faa9a709624227fae502db55a8bdd0
-  "NSObject+Rx": 8ecb1e4714f3d35ac91485d2a769b7ab4b62e697
+  Nimble: 622629381bda1dd5678162f21f1368cec7cbba60
+  "NSObject+Rx": 1cc531f17bdb4e3aaac37874f1136c81091d2f6a
   Quick: 4be43f6634acfa727dd106bdf3929ce125ffa79d
   RxSwift: 8b0671caa829a763bbce7271095859121cbd895f
 
 PODFILE CHECKSUM: 4f420ecd33a82075e360098bbed0ccaadfeb1728
 
-COCOAPODS: 1.6.1
+COCOAPODS: 1.7.5
diff --git a/Gemfile.lock b/Gemfile.lock
index 06409b7..2913164 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    CFPropertyList (3.0.0)
+    CFPropertyList (3.0.1)
     activesupport (4.2.11.1)
       i18n (~> 0.7)
       minitest (~> 5.1)
@@ -11,12 +11,12 @@ GEM
       public_suffix (>= 2.0.2, < 4.0)
     atomos (0.1.3)
     babosa (1.0.2)
-    claide (1.0.2)
-    cocoapods (1.6.1)
+    claide (1.0.3)
+    cocoapods (1.7.5)
       activesupport (>= 4.0.2, < 5)
       claide (>= 1.0.2, < 2.0)
-      cocoapods-core (= 1.6.1)
-      cocoapods-deintegrate (>= 1.0.2, < 2.0)
+      cocoapods-core (= 1.7.5)
+      cocoapods-deintegrate (>= 1.0.3, < 2.0)
       cocoapods-downloader (>= 1.2.2, < 2.0)
       cocoapods-plugins (>= 1.0.0, < 2.0)
       cocoapods-search (>= 1.0.0, < 2.0)
@@ -25,13 +25,13 @@ GEM
       cocoapods-try (>= 1.1.0, < 2.0)
       colored2 (~> 3.1)
       escape (~> 0.0.4)
-      fourflusher (>= 2.2.0, < 3.0)
+      fourflusher (>= 2.3.0, < 3.0)
       gh_inspector (~> 1.0)
       molinillo (~> 0.6.6)
       nap (~> 1.0)
       ruby-macho (~> 1.4)
-      xcodeproj (>= 1.8.1, < 2.0)
-    cocoapods-core (1.6.1)
+      xcodeproj (>= 1.10.0, < 2.0)
+    cocoapods-core (1.7.5)
       activesupport (>= 4.0.2, < 6)
       fuzzy_match (~> 2.0.4)
       nap (~> 1.0)
@@ -41,7 +41,7 @@ GEM
       nap
     cocoapods-search (1.0.0)
     cocoapods-stats (1.1.0)
-    cocoapods-trunk (1.3.1)
+    cocoapods-trunk (1.4.0)
       nap (>= 0.8, < 2.0)
       netrc (~> 0.11)
     cocoapods-try (1.1.0)
@@ -53,12 +53,12 @@ GEM
     declarative (0.0.10)
     declarative-option (0.1.0)
     digest-crc (0.4.1)
-    domain_name (0.5.20180417)
+    domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
-    dotenv (2.7.2)
+    dotenv (2.7.5)
     emoji_regex (1.0.1)
     escape (0.0.4)
-    excon (0.64.0)
+    excon (0.66.0)
     faraday (0.15.4)
       multipart-post (>= 1.2, < 3)
     faraday-cookie_jar (0.0.6)
@@ -67,7 +67,7 @@ GEM
     faraday_middleware (0.13.1)
       faraday (>= 0.7.4, < 1.0)
     fastimage (2.1.5)
-    fastlane (2.122.0)
+    fastlane (2.129.0)
       CFPropertyList (>= 2.3, < 4.0.0)
       addressable (>= 2.3, < 3.0.0)
       babosa (>= 1.0.2, < 2.0.0)
@@ -86,8 +86,8 @@ GEM
       google-cloud-storage (>= 1.15.0, < 2.0.0)
       highline (>= 1.7.2, < 2.0.0)
       json (< 3.0.0)
-      mini_magick (~> 4.5.1)
-      multi_json
+      jwt (~> 2.1.0)
+      mini_magick (>= 4.9.4, < 5.0.0)
       multi_xml (~> 0.5)
       multipart-post (~> 2.0.0)
       plist (>= 3.1.0, < 4.0.0)
@@ -104,7 +104,7 @@ GEM
       xcodeproj (>= 1.8.1, < 2.0.0)
       xcpretty (~> 0.3.0)
       xcpretty-travis-formatter (>= 0.0.3)
-    fourflusher (2.2.0)
+    fourflusher (2.3.1)
     fuzzy_match (2.0.4)
     gh_inspector (1.1.3)
     google-api-client (0.23.9)
@@ -115,9 +115,9 @@ GEM
       representable (~> 3.0)
       retriable (>= 2.0, < 4.0)
       signet (~> 0.9)
-    google-cloud-core (1.3.0)
+    google-cloud-core (1.3.1)
       google-cloud-env (~> 1.0)
-    google-cloud-env (1.0.5)
+    google-cloud-env (1.2.1)
       faraday (~> 0.11)
     google-cloud-storage (1.16.0)
       digest-crc (~> 0.4)
@@ -143,7 +143,7 @@ GEM
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0331)
-    mini_magick (4.5.1)
+    mini_magick (4.9.5)
     minitest (5.11.3)
     molinillo (0.6.6)
     multi_json (1.13.1)
@@ -163,7 +163,7 @@ GEM
     retriable (3.1.2)
     rouge (2.0.7)
     ruby-macho (1.4.0)
-    rubyzip (1.2.2)
+    rubyzip (1.2.3)
     security (0.1.3)
     signet (0.11.0)
       addressable (~> 2.3)
@@ -178,19 +178,19 @@ GEM
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
-    tty-cursor (0.6.1)
-    tty-screen (0.6.5)
-    tty-spinner (0.9.0)
-      tty-cursor (~> 0.6.0)
+    tty-cursor (0.7.0)
+    tty-screen (0.7.0)
+    tty-spinner (0.9.1)
+      tty-cursor (~> 0.7)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
     uber (0.1.0)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.6)
-    unicode-display_width (1.5.0)
+    unicode-display_width (1.6.0)
     word_wrap (1.0.0)
-    xcodeproj (1.9.0)
+    xcodeproj (1.12.0)
       CFPropertyList (>= 2.3.3, < 4.0)
       atomos (~> 0.1.3)
       claide (>= 1.0.2, < 2.0)
@@ -209,4 +209,4 @@ DEPENDENCIES
   fastlane
 
 BUNDLED WITH
-   1.17.2
+   1.17.3
diff --git a/HasDisposeBag.swift b/HasDisposeBag.swift
index 158e09a..9e59d83 100644
--- a/HasDisposeBag.swift
+++ b/HasDisposeBag.swift
@@ -20,7 +20,7 @@ extension HasDisposeBag {
         return result
     }
 
-    public var disposeBag: DisposeBag {
+    var disposeBag: DisposeBag {
         get {
             return synchronizedBag {
                 if let disposeObject = objc_getAssociatedObject(self, &disposeBagContext) as? DisposeBag {
diff --git a/NSObject+Rx.podspec b/NSObject+Rx.podspec
index e405707..fb5757d 100644
--- a/NSObject+Rx.podspec
+++ b/NSObject+Rx.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "NSObject+Rx"
-  s.version      = "5.0.0"
+  s.version      = "5.0.1"
   s.summary      = "Handy RxSwift extensions on NSObject."
   s.description  = <<-DESC
     Right now, we just have a `rx_disposeBag` property, but we're open to PRs!