diff --git a/7.SpringMvc/in28minutes-core/pom.xml b/7.SpringMvc/in28minutes-core/pom.xml
index f392d0e..9ed198a 100644
--- a/7.SpringMvc/in28minutes-core/pom.xml
+++ b/7.SpringMvc/in28minutes-core/pom.xml
@@ -127,7 +127,7 @@
 		<dependency>
 			<groupId>commons-collections</groupId>
 			<artifactId>commons-collections</artifactId>
-			<version>3.2.1</version>
+			<version>3.2.2</version>
 		</dependency>
 
 		<!-- test dependencies -->