diff --git a/hamcrest-mail/pom.xml b/hamcrest-mail/pom.xml
index 074c1ba..3e994d0 100644
--- a/hamcrest-mail/pom.xml
+++ b/hamcrest-mail/pom.xml
@@ -135,7 +135,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-checkstyle-plugin</artifactId>
-          <version>3.4.0</version>
+          <version>3.5.0</version>
           <dependencies>
             <dependency>
               <groupId>com.puppycrawl.tools</groupId>
diff --git a/pom.xml b/pom.xml
index aae1319..a5fe8fc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -63,7 +63,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-checkstyle-plugin</artifactId>
-          <version>3.4.0</version>
+          <version>3.5.0</version>
           <dependencies>
             <dependency>
               <groupId>com.puppycrawl.tools</groupId>