[FLINK-27026][build] Upgrade checkstyle plugin
diff --git a/pom.xml b/pom.xml
index fb7becb..bf54438 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1194,7 +1194,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-checkstyle-plugin</artifactId>
-					<version>2.17</version>
+					<version>3.1.2</version>
 					<dependencies>
 						<dependency>
 							<groupId>com.puppycrawl.tools</groupId>