diff --git a/.travis.yml b/.travis.yml
index fdb96049d..238395245 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,8 +3,8 @@ sudo: required
 jdk: oraclejdk8
 env:
   global:
-    - TARGET_API=26
-    - BUILD_TOOLS=26.0.2
+    - TARGET_API=27
+    - BUILD_TOOLS=27.0.0
   matrix:
     - EMULATOR_API=21 ANDROID_ABI=armeabi-v7a
 android:
diff --git a/app/build.gradle b/app/build.gradle
index da12fc358..40a1f09da 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -27,14 +27,14 @@ android {
         textReport true
     }
 
-    compileSdkVersion 26
-    buildToolsVersion '26.0.2'
+    compileSdkVersion 27
+    buildToolsVersion '27.0.0'
 
     defaultConfig {
         applicationId "org.tasks"
         versionCode 481
-        versionName "5.1.4"
-        targetSdkVersion 26
+        versionName "5.1.5"
+        targetSdkVersion 27
         minSdkVersion 15
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
 
@@ -100,7 +100,7 @@ configurations {
 final DAGGER_VERSION = '2.9'
 final BUTTERKNIFE_VERSION = '8.8.1'
 final GPS_VERSION = '11.4.2'
-final SUPPORT_VERSION = '26.1.0'
+final SUPPORT_VERSION = '27.0.0'
 final STETHO_VERSION = '1.5.0'
 final ROOM_VERSION = '1.0.0-alpha9-1'
 final TESTING_SUPPORT_VERSION = '1.0.0'
diff --git a/gradle.properties b/gradle.properties
index b8a807e22..b3c7a0330 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1 @@
 org.gradle.jvmargs=-Xmx2048M
-android.enableAapt2=false