diff --git a/build.gradle b/build.gradle
index 25fb4cd..0227342 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 plugins {
     id 'java-library'
-    id 'io.github.goooler.shadow' version '8.1.7'
+    id 'com.gradleup.shadow' version '8.3.3'
     id 'com.diffplug.spotless' version '6.25.0'
 }
 
@@ -23,16 +23,18 @@ repositories {
 configurations {
     spongevanilla
     spongeforge
+    spongeneo
 }
 
 dependencies {
-    api 'org.spongepowered:spongeapi:11.0.0'
+    api 'org.spongepowered:spongeapi:12.0.0'
 
-    implementation 'net.smoofyuniverse:oreupdater:1.3.1'
+    implementation 'net.smoofyuniverse:oreupdater:1.4.0'
     implementation 'net.smoofyuniverse:worldmap:1.3.0'
 
-    spongevanilla('org.spongepowered:spongevanilla:1.20.6-11.0.0:universal') { transitive = false }
-    spongeforge('org.spongepowered:spongeforge:1.20.6-50.0.22-11.0.0:universal') { transitive = false }
+    spongevanilla('org.spongepowered:spongevanilla:1.21.1-12.0.0-RC1856:universal') { transitive = false }
+    spongeforge('org.spongepowered:spongeforge:1.21.1-52.0.3-12.0.0-RC1856:universal') { transitive = false }
+    spongeneo('org.spongepowered:spongeneo:1.21.1-21.1.35-12.0.0-RC1856:universal') { transitive = false }
 }
 
 jar {
@@ -76,6 +78,15 @@ tasks.register('setupForgeServer', Copy) {
     from shadowJar
 }
 
+tasks.register('setupNeoServer', Copy) {
+    into 'run/neoforge/mods'
+
+    from configurations.spongeneo
+    rename('spongeneo-(.*).jar', 'spongeneo.jar')
+
+    from shadowJar
+}
+
 spotless {
     ratchetFrom 'origin/master'
 
diff --git a/src/main/java/net/smoofyuniverse/autopickup/handler/DropHandler.java b/src/main/java/net/smoofyuniverse/autopickup/handler/DropHandler.java
index b35977b..e5144bd 100644
--- a/src/main/java/net/smoofyuniverse/autopickup/handler/DropHandler.java
+++ b/src/main/java/net/smoofyuniverse/autopickup/handler/DropHandler.java
@@ -99,8 +99,8 @@ protected void handlePlayer(C config, List<ExperienceOrb> orbs, List<Item> items
 				if (config.blacklistItems.contains(stack.type()))
 					continue;
 
-				List<ItemStackSnapshot> rejectedList = inv.offer(stack.createStack()).rejectedItems();
-				ItemStackSnapshot rejected = rejectedList.isEmpty() ? null : rejectedList.get(0);
+				List<ItemStackSnapshot> rejectedList = inv.offer(stack).rejectedItems();
+				ItemStackSnapshot rejected = rejectedList.isEmpty() ? null : rejectedList.getFirst();
 
 				if (rejected == null || rejected.isEmpty()) {
 					it.remove();
diff --git a/src/main/resources/META-INF/sponge_plugins.json b/src/main/resources/META-INF/sponge_plugins.json
index d4ae3d2..cda00ef 100644
--- a/src/main/resources/META-INF/sponge_plugins.json
+++ b/src/main/resources/META-INF/sponge_plugins.json
@@ -25,7 +25,7 @@
             "dependencies": [
                 {
                     "id": "spongeapi",
-                    "version": "11.0.0",
+                    "version": "12.0.0",
                     "load-order": "AFTER",
                     "optional": false
                 }