diff --git a/expiring-limited-cache/pom.xml b/expiring-limited-cache/pom.xml
index e82a36c..d9ee247 100644
--- a/expiring-limited-cache/pom.xml
+++ b/expiring-limited-cache/pom.xml
@@ -263,7 +263,7 @@
 							<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 5b35cd2..5e2b6cd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -45,7 +45,7 @@
 							<dependency>
 								<groupId>com.puppycrawl.tools</groupId>
 								<artifactId>checkstyle</artifactId>
-								<version>13.8.0</version>
+								<version>13.9.0</version>
 							</dependency>
 						</dependencies>
 						<configuration>