diff --git a/examples/iOS-Hybrid-App-Java-Server/pom.xml b/examples/iOS-Hybrid-App-Java-Server/pom.xml
index 4a60154f..a3a7ea3c 100644
--- a/examples/iOS-Hybrid-App-Java-Server/pom.xml
+++ b/examples/iOS-Hybrid-App-Java-Server/pom.xml
@@ -59,12 +59,12 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-tomcat</artifactId>
-            <version>4.0.0</version>
+            <version>4.0.6</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-json</artifactId>
-            <version>4.0.4</version>
+            <version>4.0.6</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -113,7 +113,7 @@
         <dependency>
             <groupId>org.apache.tomcat.embed</groupId>
             <artifactId>tomcat-embed-core</artifactId>
-            <version>11.0.18</version>
+            <version>11.0.21</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.apache.tomcat</groupId>
@@ -129,7 +129,7 @@
         <dependency>
             <groupId>org.apache.tomcat.embed</groupId>
             <artifactId>tomcat-embed-websocket</artifactId>
-            <version>11.0.18</version>
+            <version>11.0.21</version>
         </dependency>
         <dependency>
             <groupId>org.apache.tomcat.embed</groupId>