diff --git a/mailpit-java-client/pom.xml b/mailpit-java-client/pom.xml
index 2796c10..e94d91b 100644
--- a/mailpit-java-client/pom.xml
+++ b/mailpit-java-client/pom.xml
@@ -515,7 +515,7 @@
 							<dependency>
 								<groupId>com.puppycrawl.tools</groupId>
 								<artifactId>checkstyle</artifactId>
-								<version>13.8.0</version>
+								<version>13.9.0</version>
 							</dependency>
 						</dependencies>
 						<configuration>
diff --git a/pom.xml b/pom.xml
index 399abe2..23cf1cc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
 							<dependency>
 								<groupId>com.puppycrawl.tools</groupId>
 								<artifactId>checkstyle</artifactId>
-								<version>13.8.0</version>
+								<version>13.9.0</version>
 							</dependency>
 						</dependencies>
 						<configuration>