diff --git a/samples/build.gradle b/samples/build.gradle
index 8be0cb5d4..2bb0c2f55 100644
--- a/samples/build.gradle
+++ b/samples/build.gradle
@@ -28,4 +28,5 @@ android {
 
 dependencies {
     implementation project(':commons')
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 }