diff --git a/pom.xml b/pom.xml
index 40c7a96..70d81fc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
   <groupId>uk.co.angrybee.joe</groupId>
   <artifactId>discord-whitelister</artifactId>
-  <version>1.5.0</version>
+  <version>1.5.1</version>
 
   <name>discord-whitelister</name>
   <url>https://github.com/JoeShimell/DiscordWhitelisterSpigot</url>
@@ -45,14 +45,14 @@
     <dependency>
       <groupId>org.spigotmc</groupId>
       <artifactId>spigot-api</artifactId>
-      <version>1.17.1-R0.1-SNAPSHOT</version>
+      <version>1.20.4-R0.1-SNAPSHOT</version>
       <scope>provided</scope>
     </dependency>
 
     <dependency>
       <groupId>net.dv8tion</groupId>
       <artifactId>JDA</artifactId>
-      <version>4.3.0_346</version>
+      <version>5.0.0-beta.19</version>
       <exclusions>
         <exclusion>
           <groupId>club.minnced</groupId>
@@ -70,19 +70,19 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.2.3</version>
+      <version>1.4.14</version>
     </dependency>
 
     <dependency>
       <groupId>org.yaml</groupId>
       <artifactId>snakeyaml</artifactId>
-      <version>1.26</version>
+      <version>2.2</version>
     </dependency>
 
     <dependency>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-shade-plugin</artifactId>
-      <version>3.2.4</version>
+      <version>3.5.1</version>
       <type>maven-plugin</type>
     </dependency>
 
@@ -91,8 +91,7 @@
       <groupId>com.github.LeonMangler</groupId>
       <artifactId>SuperVanish</artifactId>
       <!-- POM is invalid with java compiler ver > 8 (maven-compiler-plugin source & target version is set to 8) -->
-      <!-- TODO: get updated version if/when available for better support with compiler versions > 8  -->
-      <version>6.2.6-2</version>
+      <version>fbc303bbee6e129e56b3e89c5e83e98ee2127ff2</version>
       <scope>provided</scope>
     </dependency>
 
@@ -100,7 +99,7 @@
     <dependency>
       <groupId>net.essentialsx</groupId>
       <artifactId>EssentialsX</artifactId>
-      <version>2.19.0</version>
+      <version>2.20.1</version>
       <scope>provided</scope>
       <exclusions>
         <exclusion>
@@ -114,7 +113,7 @@
     <dependency>
       <groupId>com.github.mbax</groupId>
       <artifactId>VanishNoPacket</artifactId>
-      <version>0cb428ff27ced0b97b9601a3088e9b93616c907c</version>
+      <version>341a9a9710848d85813f7dfdab0b606d46ab264a</version>
       <scope>provided</scope>
     </dependency>
 
@@ -125,54 +124,54 @@
       <plugins>
         <plugin>
           <artifactId>maven-clean-plugin</artifactId>
-          <version>3.1.0</version>
+          <version>3.3.2</version>
         </plugin>
 
         <plugin>
           <artifactId>maven-resources-plugin</artifactId>
-          <version>3.0.2</version>
+          <version>3.3.1</version>
         </plugin>
 
         <plugin>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.8.0</version>
+          <version>3.12.1</version>
         </plugin>
 
         <plugin>
           <artifactId>maven-surefire-plugin</artifactId>
-          <version>2.22.1</version>
+          <version>3.2.5</version>
         </plugin>
 
         <plugin>
           <artifactId>maven-jar-plugin</artifactId>
-          <version>3.0.2</version>
+          <version>3.3.0</version>
         </plugin>
 
         <plugin>
           <artifactId>maven-install-plugin</artifactId>
-          <version>2.5.2</version>
+          <version>3.1.1</version>
         </plugin>
 
         <plugin>
           <artifactId>maven-deploy-plugin</artifactId>
-          <version>2.8.2</version>
+          <version>3.1.1</version>
         </plugin>
 
 
         <plugin>
           <artifactId>maven-site-plugin</artifactId>
-          <version>3.7.1</version>
+          <version>4.0.0-M13</version>
         </plugin>
 
         <plugin>
           <artifactId>maven-project-info-reports-plugin</artifactId>
-          <version>3.0.0</version>
+          <version>3.5.0</version>
         </plugin>
 
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-shade-plugin</artifactId>
-          <version>3.2.4</version>
+          <version>3.5.1</version>
           <executions>
             <execution>
               <phase>package</phase>
@@ -286,7 +285,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-antrun-plugin</artifactId>
-          <version>1.8</version>
+          <version>3.1.0</version>
           <executions>
             <execution>
               <phase>test</phase>
@@ -312,12 +311,16 @@
           <source>8</source>
           <target>8</target>
         </configuration>
+        <!--        <configuration>-->
+<!--          <source>8</source>-->
+<!--          <target>8</target>-->
+<!--        </configuration>-->
       </plugin>
 
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-shade-plugin</artifactId>
-        <version>3.2.4</version>
+        <version>3.5.1</version>
       </plugin>
     </plugins>
 
diff --git a/src/main/java/uk/co/angrybee/joe/VersionInfo.java b/src/main/java/uk/co/angrybee/joe/VersionInfo.java
index 726fc3c..d1558ef 100644
--- a/src/main/java/uk/co/angrybee/joe/VersionInfo.java
+++ b/src/main/java/uk/co/angrybee/joe/VersionInfo.java
@@ -10,5 +10,5 @@ public class VersionInfo
         return "v." + getVersion();
     }
 
-    private static String version = "1.5.0";
+    private static String version = "1.5.1";
 }
diff --git a/src/main/java/uk/co/angrybee/joe/commands/discord/CommandAdd.java b/src/main/java/uk/co/angrybee/joe/commands/discord/CommandAdd.java
index 0fd656b..8cfe8e9 100644
--- a/src/main/java/uk/co/angrybee/joe/commands/discord/CommandAdd.java
+++ b/src/main/java/uk/co/angrybee/joe/commands/discord/CommandAdd.java
@@ -260,6 +260,7 @@ public class CommandAdd {
                 /* Do as much as possible off the main server thread.
                 convert username into UUID to avoid depreciation and rate limits (according to https://minotar.net/) */
         String playerUUID = DiscordClient.minecraftUsernameToUUID(finalNameToAdd);
+
         final boolean invalidMinecraftName = playerUUID == null;
 
                 /* Configure success & failure messages here instead of on the main server thread -
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 9143be1..0efa6b7 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -1,6 +1,6 @@
 name: DiscordWhitelister
-version: 1.5.0
-api-version: 1.17
+version: 1.5.1
+api-version: 1.19
 author: Joe Shimell
 main: uk.co.angrybee.joe.DiscordWhitelister
 description: Discord Whitelister.