diff --git a/app/app.iml b/app/app.iml
index b4701ab..bd5df84 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -80,6 +80,9 @@
     </content>
     <orderEntry type="jdk" jdkName="Android API 21 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" exported="" name="support-annotations-21.0.0" level="project" />
+    <orderEntry type="library" exported="" name="support-v4-21.0.0" level="project" />
+    <orderEntry type="library" exported="" name="appcompat-v7-21.0.0" level="project" />
   </component>
 </module>
 
diff --git a/app/build.gradle b/app/build.gradle
index 0e2e10f..f565250 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -20,5 +20,5 @@ android {
 }
 
 dependencies {
-//    compile 'com.android.support:appcompat-v7:20.0.0'
+    compile 'com.android.support:appcompat-v7:21.0.0'
 }
diff --git a/app/src/main/java/fr/gaulupeau/apps/Poche/BaseActionBarActivity.java b/app/src/main/java/fr/gaulupeau/apps/Poche/BaseActionBarActivity.java
index e04e598..b8a98f0 100644
--- a/app/src/main/java/fr/gaulupeau/apps/Poche/BaseActionBarActivity.java
+++ b/app/src/main/java/fr/gaulupeau/apps/Poche/BaseActionBarActivity.java
@@ -5,9 +5,10 @@ import android.annotation.TargetApi;
 import android.app.Activity;
 import android.os.Build;
 import android.os.Bundle;
+import android.support.v7.app.ActionBarActivity;
 import android.view.MenuItem;
 
-public class BaseActionBarActivity extends Activity {
+public class BaseActionBarActivity extends ActionBarActivity {
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
@@ -19,7 +20,7 @@ public class BaseActionBarActivity extends Activity {
 	protected void addBackButtonToActionBar() {
 		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
 			try {
-				getActionBar().setDisplayHomeAsUpEnabled(true);
+				getSupportActionBar().setDisplayHomeAsUpEnabled(true);
 			} catch (Exception e) {
 				//
 			}
diff --git a/app/src/main/res/values-v11/styles.xml b/app/src/main/res/values-v11/styles.xml
deleted file mode 100644
index a6f4000..0000000
--- a/app/src/main/res/values-v11/styles.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <style name="app_theme" parent="android:Theme.Holo.Light"/>
-    <style name="mainActivity_theme" parent="android:Theme.Holo.Light" />
-</resources>
diff --git a/app/src/main/res/values-v14/styles.xml b/app/src/main/res/values-v14/styles.xml
deleted file mode 100644
index 35743c8..0000000
--- a/app/src/main/res/values-v14/styles.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <style name="app_theme" parent="android:Theme.DeviceDefault.Light.DarkActionBar"/>
-    <style name="mainActivity_theme" parent="android:Theme.DeviceDefault.Light.NoActionBar" />
-</resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index ef77173..d4fb682 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <style name="app_theme" parent="android:Theme.Light"/>
-    <style name="mainActivity_theme" parent="android:Theme.Light.NoTitleBar" />
+    <style name="app_theme" parent="Theme.AppCompat.Light.DarkActionBar"/>
+    <style name="mainActivity_theme" parent="Theme.AppCompat.Light.NoActionBar" />
 </resources>