diff --git a/app/build.gradle b/app/build.gradle
index 48fd2e6..473d8c0 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -45,7 +45,7 @@ dependencies {
     implementation "com.android.support:cardview-v7:$support_lib_version"
     implementation "com.android.support:support-v13:$support_lib_version"
     implementation 'io.reactivex.rxjava2:rxjava:2.1.9'
-    implementation 'io.reactivex.rxjava2:rxkotlin:2.1.0'
+    implementation 'io.reactivex.rxjava2:rxkotlin:2.4.0'
     implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
     implementation 'com.squareup.okhttp3:okhttp:3.9.0'
     implementation 'com.squareup.retrofit2:retrofit:2.3.0'