diff --git a/app/build.gradle b/app/build.gradle
index b5afe4c87..9fe4110bb 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,7 +6,7 @@ android {
 
     defaultConfig {
         applicationId = "com.android.keepass"
-        minSdkVersion = 3
+        minSdkVersion 4
         targetSdkVersion 23
         versionCode = 154
         versionName = "2.0.6.4"
@@ -54,4 +54,6 @@ dependencies {
     compile 'com.madgag.spongycastle:core:1.54.0.0'
     compile 'com.madgag.spongycastle:prov:1.54.0.0'
     compile 'joda-time:joda-time:2.9.4'
-}
+    compile 'com.android.support:support-v4:23.0.0'
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/keepassdroid/EntryActivity.java b/app/src/main/java/com/keepassdroid/EntryActivity.java
index c8ba6c318..c987b358c 100644
--- a/app/src/main/java/com/keepassdroid/EntryActivity.java
+++ b/app/src/main/java/com/keepassdroid/EntryActivity.java
@@ -41,6 +41,7 @@ import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.os.Handler;
 import android.preference.PreferenceManager;
+import android.support.v4.app.NotificationCompat;
 import android.text.SpannableString;
 import android.text.method.LinkMovementMethod;
 import android.text.method.PasswordTransformationMethod;
@@ -228,13 +229,17 @@ public class EntryActivity extends LockCloseHideActivity {
 
 	private Notification getNotification(String intentText, int descResId) {
 		String desc = getString(descResId);
-		Notification notify = new Notification(R.drawable.notify, desc, System.currentTimeMillis());
-		
+
 		Intent intent = new Intent(intentText);
 		PendingIntent pending = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
-		
-		notify.setLatestEventInfo(this, getString(R.string.app_name), desc, pending);
-		
+
+		// no longer supported for api level >22
+		// notify.setLatestEventInfo(this, getString(R.string.app_name), desc, pending);
+		// so instead using compat builder and create new notification
+		NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
+		Notification notify = builder.setContentIntent(pending).setContentText(desc).setContentTitle(getString(R.string.app_name))
+				.setSmallIcon(R.drawable.notify).setTicker(desc).setWhen(System.currentTimeMillis()).build();
+
 		return notify;
 	}
 	
diff --git a/build.gradle b/build.gradle
index 97e8b8e3e..37098d272 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,6 +2,10 @@
 buildscript {
     repositories {
         jcenter()
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:2.3.0'
@@ -11,5 +15,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
 }