diff --git a/chapter2/BitcoinJ_Bip70/pom.xml b/chapter2/BitcoinJ_Bip70/pom.xml
index 780d7f9..a10c2d8 100644
--- a/chapter2/BitcoinJ_Bip70/pom.xml
+++ b/chapter2/BitcoinJ_Bip70/pom.xml
@@ -30,7 +30,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>3.8.1</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>