diff --git a/app/build.gradle b/app/build.gradle
index 776b193..45a322d 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -24,7 +24,7 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:0.18"
-    implementation 'com.android.support:appcompat-v7:26.0.0'
+    implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support.constraint:constraint-layout:1.0.2'
     implementation 'com.android.support:design:26.0.0'
     implementation 'io.reactivex.rxjava2:rxjava:2.1.3'