diff --git a/canteen/pom.xml b/canteen/pom.xml
index 2398beb..66b79ae 100644
--- a/canteen/pom.xml
+++ b/canteen/pom.xml
@@ -64,7 +64,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>3.2.0</version>
+                <version>3.2.1</version>
                 <dependencies>
                     <dependency>
                         <groupId>com.puppycrawl.tools</groupId>
diff --git a/contrib/pom.xml b/contrib/pom.xml
index ac032da..44f71d1 100644
--- a/contrib/pom.xml
+++ b/contrib/pom.xml
@@ -246,7 +246,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>3.2.0</version>
+                <version>3.2.1</version>
                 <dependencies>
                     <dependency>
                         <groupId>com.puppycrawl.tools</groupId>
diff --git a/demos/pom.xml b/demos/pom.xml
index 1507337..508777b 100644
--- a/demos/pom.xml
+++ b/demos/pom.xml
@@ -157,7 +157,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>3.2.0</version>
+                <version>3.2.1</version>
                 <dependencies>
                     <dependency>
                         <groupId>com.puppycrawl.tools</groupId>
diff --git a/jprotoc/pom.xml b/jprotoc/pom.xml
index ee21b48..e440d13 100644
--- a/jprotoc/pom.xml
+++ b/jprotoc/pom.xml
@@ -202,7 +202,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>3.2.0</version>
+                <version>3.2.1</version>
                 <dependencies>
                     <dependency>
                         <groupId>com.puppycrawl.tools</groupId>