diff --git a/samples/spring/pom.xml b/samples/spring/pom.xml
index ba11ff203..cf6ccabf0 100644
--- a/samples/spring/pom.xml
+++ b/samples/spring/pom.xml
@@ -68,7 +68,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.6.3</version>
+            <version>1.6.4</version>
         </dependency>
     </dependencies>