diff --git a/2015/android/Geofence/app/build.gradle b/2015/android/Geofence/app/build.gradle
index 29af428..f6cf7dc 100644
--- a/2015/android/Geofence/app/build.gradle
+++ b/2015/android/Geofence/app/build.gradle
@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 22
+    compileSdkVersion 17
     buildToolsVersion "22.0.1"
 
     defaultConfig {
         applicationId "esrlabs.com.geofence"
         minSdkVersion 17
-        targetSdkVersion 22
+        targetSdkVersion 17
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -26,7 +26,6 @@ android {
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:appcompat-v7:22.1.1'
     testCompile 'junit:junit:4.12'
     testCompile('org.robolectric:robolectric:3.0-rc2') {
         exclude group: 'commons-logging', module: 'commons-logging'
diff --git a/2015/android/Geofence/headunitinterface/build.gradle b/2015/android/Geofence/headunitinterface/build.gradle
index 62fdab5..31a1fb3 100644
--- a/2015/android/Geofence/headunitinterface/build.gradle
+++ b/2015/android/Geofence/headunitinterface/build.gradle
@@ -1,12 +1,12 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 22
+    compileSdkVersion 17
     buildToolsVersion "22.0.1"
 
     defaultConfig {
-        minSdkVersion 15
-        targetSdkVersion 22
+        minSdkVersion 17
+        targetSdkVersion 17
         versionCode 1
         versionName "1.0"
     }
@@ -20,5 +20,4 @@ android {
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:appcompat-v7:22.2.0'
 }