diff --git a/pom.xml b/pom.xml
index 201f44716..7cc818f69 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,7 +15,7 @@
     </scm>
 
     <properties>
-        <!--        <spigot.version>1.19-R0.1-SNAPSHOT</spigot.version>-->
+<!--        <spigot.version>1.20.4-R0.1-SNAPSHOT</spigot.version>-->
         <spigot.version>1.21.11-R0.1-SNAPSHOT</spigot.version>
         <kyori.adventure.version>4.23.0</kyori.adventure.version>
         <kyori.adventure.platform.version>4.4.1-SNAPSHOT</kyori.adventure.platform.version>
@@ -417,11 +417,11 @@
             <version>3.0.2</version>
             <scope>compile</scope>
         </dependency>
-        <!--        <dependency>-->
-        <!--            <groupId>io.papermc.paper</groupId>-->
-        <!--            <artifactId>paper-api</artifactId>-->
-        <!--            <version>1.21.8-R0.1-SNAPSHOT</version>-->
-        <!--        </dependency>-->
+<!--                <dependency>-->
+<!--                    <groupId>io.papermc.paper</groupId>-->
+<!--                    <artifactId>paper-api</artifactId>-->
+<!--                    <version>1.21.11-R0.1-SNAPSHOT</version>-->
+<!--                </dependency>-->
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot-api</artifactId>
diff --git a/src/main/java/com/gmail/nossr50/mcMMO.java b/src/main/java/com/gmail/nossr50/mcMMO.java
index 445f02c9c..9da19a988 100644
--- a/src/main/java/com/gmail/nossr50/mcMMO.java
+++ b/src/main/java/com/gmail/nossr50/mcMMO.java
@@ -351,9 +351,12 @@ public class mcMMO extends JavaPlugin {
 
     private void checkForOutdatedAPI() {
         try {
-            Class<?> checkForClass = Class.forName("org.bukkit.event.block.BlockDropItemEvent");
-            checkForClass.getMethod("getItems");
+            Class<?> blockDropItemEvent = Class.forName("org.bukkit.event.block.BlockDropItemEvent");
+            blockDropItemEvent.getMethod("getItems");
             Class.forName("net.md_5.bungee.api.chat.BaseComponent");
+            // 1.20.4 checks
+            Class<?> entityDamageEvent = Class.forName("org.bukkit.event.entity.EntityDamageEvent");
+            entityDamageEvent.getMethod("getDamageSource");
         } catch (ClassNotFoundException | NoSuchMethodException e) {
             serverAPIOutdated = true;
             String software = platformManager.getServerSoftwareStr();