diff --git a/pom.xml b/pom.xml
index 63a363d..e7eb435 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,7 +46,7 @@
 							<dependency>
 								<groupId>com.puppycrawl.tools</groupId>
 								<artifactId>checkstyle</artifactId>
-								<version>10.19.0</version>
+								<version>10.20.1</version>
 							</dependency>
 						</dependencies>
 						<configuration>
diff --git a/tci-advanced-demo/pom.xml b/tci-advanced-demo/pom.xml
index 4706ef7..3ccb037 100644
--- a/tci-advanced-demo/pom.xml
+++ b/tci-advanced-demo/pom.xml
@@ -264,7 +264,7 @@
 							<dependency>
 								<groupId>com.puppycrawl.tools</groupId>
 								<artifactId>checkstyle</artifactId>
-								<version>10.19.0</version>
+								<version>10.20.1</version>
 							</dependency>
 						</dependencies>
 						<configuration>
diff --git a/tci-base/pom.xml b/tci-base/pom.xml
index 5c8c456..27aa66f 100644
--- a/tci-base/pom.xml
+++ b/tci-base/pom.xml
@@ -310,7 +310,7 @@
 							<dependency>
 								<groupId>com.puppycrawl.tools</groupId>
 								<artifactId>checkstyle</artifactId>
-								<version>10.19.0</version>
+								<version>10.20.1</version>
 							</dependency>
 						</dependencies>
 						<configuration>