diff --git a/pom.xml b/pom.xml
index 0e539ad98..433975f8f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -603,7 +603,7 @@
     <commons.encoding>utf-8</commons.encoding>
 
     <checkstyle.plugin.version>3.1.1</checkstyle.plugin.version>
-    <checkstyle.version>8.33</checkstyle.version>
+    <checkstyle.version>8.34</checkstyle.version>
     <checkstyle.configdir>src/site/resources/checkstyle</checkstyle.configdir>
 
     <spotbugs.plugin.version>4.0.0</spotbugs.plugin.version>
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 0a48dd39b..545e7139d 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -89,7 +89,7 @@ The <action> type attribute can be add,update,fix,remove.
     <action                   type="update" dev="ggregory">org.junit-pioneer:junit-pioneer 0.5.4 -> 0.6.0.</action>
     <action                   type="update" dev="ggregory">org.junit.jupiter:junit-jupiter 5.6.0 -> 5.6.1.</action>
     <action                   type="update" dev="ggregory">com.github.spotbugs:spotbugs 4.0.0 -> 4.0.6.</action>
-    <action                   type="update" dev="ggregory">com.puppycrawl.tools:checkstyle 8.29 -> 8.33.</action>
+    <action                   type="update" dev="ggregory">com.puppycrawl.tools:checkstyle 8.29 -> 8.34.</action>
     <action                   type="update" dev="ggregory">commons.surefire.version 3.0.0-M4 -> 3.0.0-M5..</action>
   </release>