diff --git a/gson-master/proto/pom.xml b/gson-master/proto/pom.xml
index 11b999d..6f7ae8a 100644
--- a/gson-master/proto/pom.xml
+++ b/gson-master/proto/pom.xml
@@ -76,7 +76,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>