diff --git a/app/build.gradle b/app/build.gradle
index 5efbaa1..5f7ab0c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -26,6 +26,8 @@ android {
 }
 
 dependencies {
+    implementation 'com.android.support:appcompat-v7:26.0.0'
+    
     compile fileTree(dir: 'libs', include: ['*.jar'])
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'