diff --git a/.travis.yml b/.travis.yml
index fd1848b13..5bb3ba39c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,14 +15,13 @@ before_install:
   - export PATH=${PATH}:${ANDROID_HOME}/tools:${ANDROID_HOME}/platform-tools
 
   # install android build tools
-  - wget https://dl-ssl.google.com/android/repository/build-tools_r19-linux.zip
-  - unzip build-tools_r19-linux.zip -d $ANDROID_HOME
+  - wget https://dl-ssl.google.com/android/repository/build-tools_r19.0.1-linux.zip
+  - unzip build-tools_r19.0.1-linux.zip -d $ANDROID_HOME
   - mkdir -p $ANDROID_HOME/build-tools/
-  - mv $ANDROID_HOME/android-4.4 $ANDROID_HOME/build-tools/19
+  - mv $ANDROID_HOME/android-4.4.2 $ANDROID_HOME/build-tools/19.0.1
 
   # Install required components.
   # For a full list, run `android list sdk -a --extended`
-  # Note that sysimg-19 downloads the ARM, x86 and MIPS images (we should optimize this).
   # Other relevant API's
   - echo yes | android update sdk --filter tools --no-ui --force > /dev/null
   - echo yes | android update sdk --filter platform-tools --no-ui --force > /dev/null
diff --git a/android-aac-enc/build.gradle b/android-aac-enc/build.gradle
index 9d543f7a8..c56ec4b92 100644
--- a/android-aac-enc/build.gradle
+++ b/android-aac-enc/build.gradle
@@ -15,7 +15,7 @@ repositories {
 
 android {
     compileSdkVersion 19
-    buildToolsVersion "19"
+    buildToolsVersion "19.0.1"
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_7
diff --git a/android-aac-enc/project.properties b/android-aac-enc/project.properties
index 8e4bc5fdc..7002f279d 100644
--- a/android-aac-enc/project.properties
+++ b/android-aac-enc/project.properties
@@ -8,5 +8,5 @@
 # project structure.
 
 # Project target.
-target=android-19
+target=android-18
 android.library=true
diff --git a/api/build.gradle b/api/build.gradle
index 9d543f7a8..c56ec4b92 100644
--- a/api/build.gradle
+++ b/api/build.gradle
@@ -15,7 +15,7 @@ repositories {
 
 android {
     compileSdkVersion 19
-    buildToolsVersion "19"
+    buildToolsVersion "19.0.1"
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_7
diff --git a/api/project.properties b/api/project.properties
index c57400d00..6905bdf0a 100644
--- a/api/project.properties
+++ b/api/project.properties
@@ -9,4 +9,4 @@
 
 android.library=true
 # Project target.
-target=android-19
+target=android-18
diff --git a/astrid/build.gradle b/astrid/build.gradle
index 52ba294e5..7a816fba2 100644
--- a/astrid/build.gradle
+++ b/astrid/build.gradle
@@ -23,7 +23,7 @@ repositories {
 
 android {
     compileSdkVersion 19
-    buildToolsVersion "19"
+    buildToolsVersion "19.0.1"
 
     defaultConfig {
         minSdkVersion 7
diff --git a/astrid/project.properties b/astrid/project.properties
index 3e8134ff4..1e91dc057 100644
--- a/astrid/project.properties
+++ b/astrid/project.properties
@@ -10,7 +10,7 @@
 # Indicates whether an apk should be generated for each density.
 split.density=false
 # Project target.
-target=android-19
+target=android-18
 apk-configurations=
 android.library.reference.1=../api
 android.library.reference.2=../android-aac-enc