diff --git a/build.gradle b/build.gradle
index 568d99a..920c465 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,5 +18,6 @@ allprojects {
     repositories {
         mavenCentral()
         google()
+        jcenter()
     }
 }
\ No newline at end of file
diff --git a/samples/database-v13-upgrade/build.gradle b/samples/database-v13-upgrade/build.gradle
index 3617d4e..c8f4a0e 100644
--- a/samples/database-v13-upgrade/build.gradle
+++ b/samples/database-v13-upgrade/build.gradle
@@ -2,6 +2,7 @@ buildscript {
     repositories {
         mavenCentral()
         google()
+        jcenter()
     }
     dependencies {
         classpath "com.android.tools.build:gradle:$build_tools_version"
@@ -12,6 +13,7 @@ apply plugin: 'com.android.application'
 repositories {
     mavenCentral()
     google()
+    jcenter()
 }
 
 android {