diff --git a/.travis.yml b/.travis.yml
index aeb32b05..eef63664 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,20 +1,18 @@
 language: objective-c
-osx_image: xcode8.1
+osx_image: xcode11.3
 sudo: false
 before_install:
   - gem install xcpretty
 install:
-  - tail -n +4 Sample\ iOS/Constants.h.example > Sample\ iOS/Constants.h
-  - echo \#define PUSHER_APP_ID @\"$(env | grep PUSHER_APP_ID | cut -d "=" -f 2)\" >> Sample\ iOS/Constants.h
-  - echo \#define PUSHER_API_KEY @\"$(env | grep PUSHER_API_KEY | cut -d "=" -f 2)\" >> Sample\ iOS/Constants.h
-  - echo \#define PUSHER_API_SECRET @\"$(env | grep PUSHER_API_SECRET | cut -d "=" -f 2)\" >> Sample\ iOS/Constants.h
+  - chmod u+x Scripts/travis-set-constants.sh
+  - Scripts/travis-set-constants.sh 
   - bundle install
 env:
   matrix:
-    - XCODE_SCHEME="libPusher" SDK="iphonesimulator" DESTINATION="OS=10.1,name=iPhone 7"
-    - XCODE_SCHEME="libPusher-OSX" SDK="macosx" DESTINATION="arch=x86_64"
-    - XCODE_SCHEME="Functional Specs" SDK="iphonesimulator" DESTINATION="OS=10.1,name=iPhone 7"
+    - XCODE_SCHEME="libPusher" SDK="iphonesimulator" DESTINATION="OS=13.3,name=iPhone 11" ADDITIONAL_ARGUMENTS=""
+    - XCODE_SCHEME="libPusher-OSX" SDK="macosx" DESTINATION="arch=x86_64" ADDITIONAL_ARGUMENTS="MACOSX_DEPLOYMENT_TARGET=10.9"
+    - XCODE_SCHEME="Functional Specs" SDK="iphonesimulator" DESTINATION="OS=13.3,name=iPhone 11" ADDITIONAL_ARGUMENTS=""
 script:
   - set -o pipefail
   - rackup -p 9292 Scripts/auth_server.ru > logs.txt 2>&1 &
-  - xcodebuild -workspace libPusher.xcworkspace -scheme "$XCODE_SCHEME" -sdk "$SDK" test -destination "$DESTINATION" | xcpretty -tc
+  - xcodebuild -workspace libPusher.xcworkspace -scheme "$XCODE_SCHEME" -sdk "$SDK" test -destination "$DESTINATION" $ADDITIONAL_ARGUMENTS | xcpretty -tc
diff --git a/Scripts/travis-set-constants.sh b/Scripts/travis-set-constants.sh
new file mode 100644
index 00000000..7401ac24
--- /dev/null
+++ b/Scripts/travis-set-constants.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+tail -n +4 Sample\ iOS/Constants.h.example > Sample\ iOS/Constants.h
+echo \#define PUSHER_APP_ID @\"$(env | grep PUSHER_APP_ID | cut -d "=" -f 2)\" >> Sample\ iOS/Constants.h
+echo \#define PUSHER_API_KEY @\"$(env | grep PUSHER_API_KEY | cut -d "=" -f 2)\" >> Sample\ iOS/Constants.h
+echo \#define PUSHER_API_SECRET @\"$(env | grep PUSHER_API_SECRET | cut -d "=" -f 2)\" >> Sample\ iOS/Constants.h