diff --git a/testcontainers-advanced-imagebuilder-dummy-app/pom.xml b/testcontainers-advanced-imagebuilder-dummy-app/pom.xml
index f58543e..2765034 100644
--- a/testcontainers-advanced-imagebuilder-dummy-app/pom.xml
+++ b/testcontainers-advanced-imagebuilder-dummy-app/pom.xml
@@ -82,7 +82,7 @@
 							<dependency>
 								<groupId>com.puppycrawl.tools</groupId>
 								<artifactId>checkstyle</artifactId>
-								<version>10.20.1</version>
+								<version>10.21.2</version>
 							</dependency>
 						</dependencies>
 						<configuration>