diff --git a/pom.xml b/pom.xml
index d24c218..f31c5e7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -33,12 +33,12 @@
         <slf4j.ver>1.7.36</slf4j.ver>
         <jetbrains.annotation.ver>23.0.0</jetbrains.annotation.ver>
 
-        <plugin.maven.compiler.ver>3.9.0</plugin.maven.compiler.ver>
-        <plugin.nexus.staging.ver>1.6.8</plugin.nexus.staging.ver>
+        <plugin.maven.compiler.ver>3.10.1</plugin.maven.compiler.ver>
+        <plugin.nexus.staging.ver>1.6.13</plugin.nexus.staging.ver>
         <plugin.maven.source.ver>3.2.1</plugin.maven.source.ver>
-        <plugin.maven.javadoc.ver>3.3.1</plugin.maven.javadoc.ver>
-        <plugin.maven.surefire.ver>3.0.0-M6</plugin.maven.surefire.ver>
+        <plugin.maven.javadoc.ver>3.4.0</plugin.maven.javadoc.ver>
         <plugin.maven.gpg.ver>3.0.1</plugin.maven.gpg.ver>
+        <plugin.maven.surefire.ver>3.0.0-M6</plugin.maven.surefire.ver>
     </properties>
 
     <dependencies>
diff --git a/src/main/java/dev/struchkov/autoresponder/compare/UnitPriorityComparator.java b/src/main/java/dev/struchkov/autoresponder/compare/UnitPriorityComparator.java
index 3e22cdf..80c7aba 100644
--- a/src/main/java/dev/struchkov/autoresponder/compare/UnitPriorityComparator.java
+++ b/src/main/java/dev/struchkov/autoresponder/compare/UnitPriorityComparator.java
@@ -9,7 +9,7 @@ import java.util.Comparator;
  *
  * @author upagge [07/07/2019]
  */
-public class UnitPriorityComparator implements Comparator<Unit> {
+public class UnitPriorityComparator implements Comparator<Unit<?>> {
 
     @Override
     public int compare(Unit unit1, Unit unit2) {