diff --git a/.config/checkstyle/checkstyle.xml b/.config/checkstyle/checkstyle.xml
index f45edd6..6049c8f 100644
--- a/.config/checkstyle/checkstyle.xml
+++ b/.config/checkstyle/checkstyle.xml
@@ -81,7 +81,7 @@
 		</module>
 		<!-- Name classes correctly and don't use generic name for everything -->
 		<module name="IllegalIdentifierName">
-			<property name="format" value="^(?!(.*(Helper|Util))$).+$"/>
+			<property name="format" value="^(?!(.*(Helper|Util(s|ity)?))$).+$"/>
 			<property name="tokens" value=" CLASS_DEF"/>
 		</module>
 		<module name="IllegalImport"/>
diff --git a/.idea/PMDPlugin.xml b/.idea/PMDPlugin.xml
deleted file mode 100644
index 0936e51..0000000
--- a/.idea/PMDPlugin.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="PMDPlugin">
-    <option name="customRuleSets">
-      <list>
-        <option value="$PROJECT_DIR$\.config\pmd\java\ruleset.xml" />
-      </list>
-    </option>
-    <option name="inEditorAnnotationRules">
-      <list>
-        <option value="$PROJECT_DIR$\.config\pmd\java\ruleset.xml" />
-      </list>
-    </option>
-    <option name="skipTestSources" value="false" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index c9137ac..0e294e0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,7 +3,7 @@ plugins {
     id 'idea'
     id 'checkstyle'
     id 'pmd'
-    id 'org.jetbrains.intellij.platform' version '2.17.0'
+    id 'org.jetbrains.intellij.platform' version '2.18.1'
 }
 
 ext {
diff --git a/gradle.properties b/gradle.properties
index d6c33f8..b7c0f45 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,7 +5,7 @@ pluginName=
 pluginVersion=
 # IntelliJ Platform Properties -> https://plugins.jetbrains.com/docs/intellij/tools-gradle-intellij-plugin.html#configuration-intellij-extension
 platformType=IU
-platformVersion=2026.1.1
+platformVersion=2026.2
 platformSinceBuild=253
 # Plugin Dependencies -> https://plugins.jetbrains.com/docs/intellij/plugin-dependencies.html
 # Example: platformBundledPlugins = com.intellij.java, com.jetbrains.php:203.4449.22