diff --git a/PostgreSQL/04.proj/pom.xml b/PostgreSQL/04.proj/pom.xml
index 4e4341a..b79b80d 100644
--- a/PostgreSQL/04.proj/pom.xml
+++ b/PostgreSQL/04.proj/pom.xml
@@ -31,7 +31,7 @@
 <dependency>
     <groupId>commons-io</groupId>
     <artifactId>commons-io</artifactId>
-    <version>2.6</version>
+    <version>2.7</version>
 </dependency>
   </dependencies>
   <build>