diff --git a/pom.xml b/pom.xml
index 4b5f1da..8131d7e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -99,7 +99,7 @@
         <plugin>
           <groupId>com.diffplug.spotless</groupId>
           <artifactId>spotless-maven-plugin</artifactId>
-          <version>2.44.5</version>
+          <version>3.2.0</version>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
@@ -249,13 +249,13 @@
               <entryPoints>
                 <entryPoint>dev.dendrodocs.tool.Main</entryPoint>
               </entryPoints>
-              <shadedClassifierName></shadedClassifierName>
+              <shadedClassifierName />
               <transformers>
                 <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                   <mainClass>dev.dendrodocs.tool.Main</mainClass>
                 </transformer>
-                <transformer implementation="org.apache.maven.plugins.shade.resource.ApacheLicenseResourceTransformer"></transformer>
-                <transformer implementation="org.apache.maven.plugins.shade.resource.ApacheNoticeResourceTransformer"></transformer>
+                <transformer implementation="org.apache.maven.plugins.shade.resource.ApacheLicenseResourceTransformer" />
+                <transformer implementation="org.apache.maven.plugins.shade.resource.ApacheNoticeResourceTransformer" />
               </transformers>
             </configuration>
           </execution>