diff --git a/.travis.yml b/.travis.yml
index 5d761f130..2bc57a226 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ android:
     - tools
     - platform-tools
     - tools
-    - build-tools-26.0.2
+    - build-tools-27.0.1
     - android-24
     - android-25
     - android-26
@@ -22,4 +22,4 @@ before_script:
 
 script:
   - android list target
-  - ./gradlew connectedAndroidTest
\ No newline at end of file
+  - ./gradlew connectedAndroidTest
diff --git a/build.gradle b/build.gradle
index 02d83eeb3..3407b82a0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
diff --git a/gradle.properties b/gradle.properties
index 5b920fabe..189ca3d61 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,9 +1,9 @@
 COMPILE_SDK_VERSION=25
-BUILD_TOOLS_VERSION=26.0.2
+BUILD_TOOLS_VERSION=27.0.1
 MIN_SDK_VERSION=9
 TARGET_SDK_VERSION=25
 # dependency versions
-SUPPORT_LIBRARY_VERSION=25.0.1
+SUPPORT_LIBRARY_VERSION=25.4.0
 CONTENTPAL_VERSION=3effe48
 ROBOLECTRIC_VERSION=3.1.4
 JEMS_VERSION=1.13