diff --git a/app/build.gradle b/app/build.gradle
index 93d3ba89..d899278d 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -65,14 +65,9 @@ android {
 dependencies {
     implementation "com.google.android.material:material:$material_version"
     implementation "androidx.constraintlayout:constraintlayout:$constraint_layout_version"
-    implementation "androidx.core:core-ktx:$ktx_version"
-    implementation "androidx.preference:preference:$preference_version"
     implementation "androidx.navigation:navigation-fragment-ktx:$navigation_version"
-    implementation "androidx.navigation:navigation-runtime-ktx:$navigation_version"
     implementation "androidx.navigation:navigation-ui-ktx:$navigation_version"
-    implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
-    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
-    implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"
+    implementation "androidx.preference:preference:$preference_version"
     implementation "androidx.room:room-runtime:$room_version"
     implementation "androidx.room:room-ktx:$room_version"
     kapt "androidx.room:room-compiler:$room_version"
@@ -85,7 +80,7 @@ dependencies {
     implementation "com.squareup.retrofit2:retrofit:$retrofit_version"
     implementation "com.squareup.retrofit2:converter-moshi:$retrofit_version"
 
-    implementation "org.osmdroid:osmdroid-android:$openStreetMap_version"
-
+    implementation "com.github.AppIntro:AppIntro:$app_intro_version"
+    implementation "org.osmdroid:osmdroid-android:$osmdroid_version"
     implementation "com.github.davidmoten:predict4java:$predict4java_version"
 }
diff --git a/build.gradle b/build.gradle
index 7f4dba62..efab7958 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,24 +19,24 @@
 
 buildscript {
     ext {
-        gradle_version = '4.0.1'
+        gradle_version = '4.0.2'
         gradle_plugin_version = '1.4.10'
         material_version = '1.2.1'
-        constraint_layout_version = '2.0.1'
-        ktx_version = '1.3.2'
-        preference_version = '1.1.1'
+        constraint_layout_version = '2.0.2'
         navigation_version = '2.3.0'
-        lifecycle_version = '2.2.0'
+        preference_version = '1.1.1'
         room_version = '2.2.5'
         hilt_version = '2.29.1-alpha'
         hilt_viewmodel_version = '1.0.0-alpha02'
         retrofit_version = '2.9.0'
-        openStreetMap_version = '6.1.8'
+        app_intro_version = '6.0.0'
+        osmdroid_version = '6.1.8'
         predict4java_version = '1.3.1'
     }
     repositories {
         google()
         jcenter()
+        maven { url "https://jitpack.io" }
     }
     dependencies {
         classpath "com.android.tools.build:gradle:$gradle_version"
@@ -50,6 +50,7 @@ allprojects {
     repositories {
         google()
         jcenter()
+        maven { url "https://jitpack.io" }
     }
 }