diff --git a/gitbook06/pom.xml b/gitbook06/pom.xml
index 9337c67..0990996 100644
--- a/gitbook06/pom.xml
+++ b/gitbook06/pom.xml
@@ -138,7 +138,7 @@
 		<dependency>
 			<groupId>commons-io</groupId>
 			<artifactId>commons-io</artifactId>
-			<version>1.4</version>
+			<version>2.7</version>
 		</dependency>
 
 		<!-- test -->