diff --git a/.travis.yml b/.travis.yml
index 3a7132e32..ee4153719 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: cpp
 #language: objective-c
 
-osx_image: xcode10.1
+osx_image: xcode11.5
 
 notifications:
   email: false
@@ -29,6 +29,6 @@ script:
   - ls /Volumes/bin:Prismatik/Prismatik.app
   - otool -L /Volumes/bin:Prismatik/Prismatik.app/Contents/MacOS/Prismatik
   - otool -L /Volumes/bin:Prismatik/Prismatik.app/Contents/Frameworks/QtWidgets.framework/Versions/5/QtWidgets
-  - hdiutil detach /dev/disk1s1
+  - hdiutil detach /Volumes/bin:Prismatik
   - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ] && [ "$TRAVIS_BRANCH" = "master" ]; then curl -T bin/Prismatik.dmg "https://psieg.de/lightpack/osx_builds/Prismatik_${VERSION}_${TRAVIS_BUILD_NUMBER}.dmg" -u "${PSIEG_UPLOAD_USER}:${PSIEG_UPLOAD_PASSWORD}"; fi'
   - set +e