diff --git a/.gitmodules b/.gitmodules
index 4827716..b7a7f70 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,5 +1,5 @@
 [submodule "Carthage/Checkouts/Swiftx"]
-	url = https://github.com/typelift/Swiftx.git
+	url = https://github.com/pushp1989/Swiftx.git
 	path = Carthage/Checkouts/Swiftx
 [submodule "Carthage/Checkouts/FileCheck"]
 	path = Carthage/Checkouts/FileCheck
@@ -9,4 +9,4 @@
 	url = https://github.com/typelift/Operadics.git
 [submodule "Carthage/Checkouts/SwiftCheck"]
 	path = Carthage/Checkouts/SwiftCheck
-	url = https://github.com/typelift/SwiftCheck.git
+	url = https://github.com/pushp1989/SwiftCheck.git
diff --git a/.travis.yml b/.travis.yml
index 30cb210..40127b7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ matrix:
   include:
     - os: osx
       language: objective-c
-      osx_image: xcode10.2
+      osx_image: xcode11
       before_install:
         - git submodule update --init --recursive
       script:
@@ -13,14 +13,14 @@ matrix:
         - carthage build --no-skip-current
     - os: osx
       language: objective-c
-      osx_image: xcode10.2
+      osx_image: xcode11
       before_install:
         - git submodule update --init --recursive
       script:
         - set -o pipefail
         - xcodebuild test -scheme Swiftz | xcpretty -c
-        - xcodebuild build-for-testing -scheme Swiftz-iOS -destination "platform=iOS Simulator,name=iPad Pro (12.9-inch) (2nd generation)" | xcpretty -c
-        - xcodebuild test -scheme Swiftz-iOS -destination "platform=iOS Simulator,name=iPad Pro (12.9-inch) (2nd generation)" | xcpretty -c
+        - xcodebuild build-for-testing -scheme Swiftz-iOS -destination "platform=iOS Simulator,name=iPad Pro (12.9-inch) (3rd generation)" | xcpretty -c
+        - xcodebuild test -scheme Swiftz-iOS -destination "platform=iOS Simulator,name=iPad Pro (12.9-inch) (3rd generation)" | xcpretty -c
         - xcodebuild build-for-testing -scheme Swiftz-tvOS -destination 'platform=tvOS Simulator,name=Apple TV 4K (at 1080p)' | xcpretty -c
         - xcodebuild test -scheme Swiftz-tvOS -destination 'platform=tvOS Simulator,name=Apple TV 4K (at 1080p)' | xcpretty -c
     - os: linux
diff --git a/Cartfile.private b/Cartfile.private
index b49b1bf..1a171f3 100644
--- a/Cartfile.private
+++ b/Cartfile.private
@@ -1,3 +1,3 @@
-github "typelift/Swiftx"
-github "typelift/SwiftCheck"
+github "pushp1989/Swiftx" "0167622512a15d53f2c0852a64f2c03b9d6cfe8b"
+github "pushp1989/SwiftCheck" "cfe6eb2a27097ff071f278d3c0f40fa11e42b0aa"
 github "typelift/Operadics"
diff --git a/Cartfile.resolved b/Cartfile.resolved
index 0ae3264..87ac925 100644
--- a/Cartfile.resolved
+++ b/Cartfile.resolved
@@ -1,3 +1,3 @@
+github "pushp1989/SwiftCheck" "cfe6eb2a27097ff071f278d3c0f40fa11e42b0aa"
+github "pushp1989/Swiftx" "0167622512a15d53f2c0852a64f2c03b9d6cfe8b"
 github "typelift/Operadics" "0.4.0"
-github "typelift/SwiftCheck" "0.12.0"
-github "typelift/Swiftx" "0.8.0"
diff --git a/Carthage/Checkouts/SwiftCheck b/Carthage/Checkouts/SwiftCheck
index 077c096..cfe6eb2 160000
--- a/Carthage/Checkouts/SwiftCheck
+++ b/Carthage/Checkouts/SwiftCheck
@@ -1 +1 @@
-Subproject commit 077c096c3ddfc38db223ac8e525ad16ffb987138
+Subproject commit cfe6eb2a27097ff071f278d3c0f40fa11e42b0aa
diff --git a/Carthage/Checkouts/Swiftx b/Carthage/Checkouts/Swiftx
index 4affb64..0167622 160000
--- a/Carthage/Checkouts/Swiftx
+++ b/Carthage/Checkouts/Swiftx
@@ -1 +1 @@
-Subproject commit 4affb6451b6981cf56c2ec1287aaee3406a5e5e0
+Subproject commit 0167622512a15d53f2c0852a64f2c03b9d6cfe8b