diff --git a/turorial1/pom.xml b/turorial1/pom.xml
index 88b7137..3ccce20 100644
--- a/turorial1/pom.xml
+++ b/turorial1/pom.xml
@@ -42,13 +42,13 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>compile</scope>
         </dependency>