diff --git a/BulChat/pom.xml b/BulChat/pom.xml
index ee8de85..489b34f 100644
--- a/BulChat/pom.xml
+++ b/BulChat/pom.xml
@@ -50,7 +50,7 @@
         <dependency>
             <groupId>org.springframework.security</groupId>
             <artifactId>spring-security-core</artifactId>
-            <version>5.2.5.RELEASE</version>
+            <version>5.2.11.RELEASE</version>
         </dependency>
     </dependencies>