all: upgrade to JUnit 4.12
diff --git a/documentation/server-reflection-tutorial.md b/documentation/server-reflection-tutorial.md
index 4cd68b6..025d3b0 100644
--- a/documentation/server-reflection-tutorial.md
+++ b/documentation/server-reflection-tutorial.md
@@ -28,7 +28,7 @@
+ compile "io.grpc:grpc-services:${grpcVersion}"
compile "io.grpc:grpc-stub:${grpcVersion}"
- testCompile "junit:junit:4.11"
+ testCompile "junit:junit:4.12"
--- a/examples/src/main/java/io/grpc/examples/helloworld/HelloWorldServer.java
+++ b/examples/src/main/java/io/grpc/examples/helloworld/HelloWorldServer.java
@@ -33,6 +33,7 @@ package io.grpc.examples.helloworld;