diff --git a/backend/build.gradle b/backend/build.gradle
index 91baa850..b2efb3eb 100644
--- a/backend/build.gradle
+++ b/backend/build.gradle
@@ -19,9 +19,9 @@ sourceCompatibility = JavaVersion.VERSION_1_7
 targetCompatibility = JavaVersion.VERSION_1_7
 
 dependencies {
-    implementation 'com.google.appengine:appengine-endpoints:1.9.59'
-    implementation 'com.google.appengine:appengine-endpoints-deps:1.9.59'
+    implementation 'com.google.appengine:appengine-endpoints:1.9.78'
+    implementation 'com.google.appengine:appengine-endpoints-deps:1.9.78'
     implementation 'javax.servlet:javax.servlet-api:4.0.1'
-    implementation 'com.googlecode.objectify:objectify:4.1.3'
+    implementation 'com.googlecode.objectify:objectify:6.0.6'
     implementation 'com.ganyo:gcm-server:1.1.0'
 }