diff --git a/GuavaBook/pom.xml b/GuavaBook/pom.xml
index 3a3d012..7704052 100644
--- a/GuavaBook/pom.xml
+++ b/GuavaBook/pom.xml
@@ -46,7 +46,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-core</artifactId>
-            <version>3.2.0.RELEASE</version>
+            <version>5.3.18</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>