diff --git a/Example/build.gradle b/Example/build.gradle
index 44b1a3c..7959d68 100644
--- a/Example/build.gradle
+++ b/Example/build.gradle
@@ -14,7 +14,7 @@ repositories {
 
 android {
     compileSdkVersion "Google Inc.:Glass Development Kit Preview:19"
-    buildToolsVersion '19'
+    buildToolsVersion '19.0.3'
     defaultConfig {
         minSdkVersion 19
         targetSdkVersion 19
diff --git a/Lib/build.gradle b/Lib/build.gradle
index 75c8744..e08dd06 100644
--- a/Lib/build.gradle
+++ b/Lib/build.gradle
@@ -14,7 +14,7 @@ repositories {
 
 android {
     compileSdkVersion "Google Inc.:Glass Development Kit Preview:19"
-    buildToolsVersion '19'
+    buildToolsVersion '19.0.3'
     defaultConfig {
         minSdkVersion 19
         targetSdkVersion 19