diff --git a/build.gradle.kts b/build.gradle.kts
index e6045a5..2f31d2f 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -14,12 +14,12 @@ loom {
 
 dependencies {
     //to change the versions see the gradle.properties file
-    minecraft("com.mojang:minecraft:1.20.5")
+    minecraft("com.mojang:minecraft:1.21")
     mappings(loom.officialMojangMappings())
-    modImplementation("net.fabricmc:fabric-loader:0.15.10")
+    modImplementation("net.fabricmc:fabric-loader:0.15.11")
 
     // Fabric API. This is technically optional, but you probably want it anyway.
-    modImplementation("net.fabricmc.fabric-api:fabric-api:0.97.6+1.20.5")
+    modImplementation("net.fabricmc.fabric-api:fabric-api:0.100.1+1.21")
 
     // Base Floodgate
     implementation("org.geysermc.floodgate:core:2.2.3-20240508.151752-4")
diff --git a/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/FormPayload.java b/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/FormPayload.java
index 132e39b..6ab4add 100644
--- a/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/FormPayload.java
+++ b/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/FormPayload.java
@@ -3,11 +3,12 @@
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.codec.StreamCodec;
 import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
 public record FormPayload(byte[] data) implements CustomPacketPayload {
     public static final StreamCodec<FriendlyByteBuf, FormPayload> STREAM_CODEC = CustomPacketPayload.codec(FormPayload::write, FormPayload::new);
-    public static final CustomPacketPayload.Type<FormPayload> TYPE = CustomPacketPayload.createType("floodgate:form");
+    public static final CustomPacketPayload.Type<FormPayload> TYPE = new Type<>(ResourceLocation.parse("floodgate:form"));
 
     private FormPayload(FriendlyByteBuf friendlyByteBuf) {
         this(friendlyByteBuf.readByteArray());
@@ -17,11 +18,8 @@ private void write(FriendlyByteBuf friendlyByteBuf) {
         friendlyByteBuf.writeByteArray(this.data);
     }
 
+    @Override
     public CustomPacketPayload.@NonNull Type<FormPayload> type() {
         return TYPE;
     }
-
-    public byte[] data() {
-        return this.data;
-    }
 }
\ No newline at end of file
diff --git a/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/PacketPayload.java b/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/PacketPayload.java
index 89276b5..08bc2c6 100644
--- a/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/PacketPayload.java
+++ b/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/PacketPayload.java
@@ -3,11 +3,12 @@
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.codec.StreamCodec;
 import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
 public record PacketPayload(byte[] data) implements CustomPacketPayload {
     public static final StreamCodec<FriendlyByteBuf, PacketPayload> STREAM_CODEC = CustomPacketPayload.codec(PacketPayload::write, PacketPayload::new);
-    public static final CustomPacketPayload.Type<PacketPayload> TYPE = CustomPacketPayload.createType("floodgate:packet");
+    public static final CustomPacketPayload.Type<PacketPayload> TYPE = new Type<>(ResourceLocation.parse("floodgate:packet"));
 
     private PacketPayload(FriendlyByteBuf friendlyByteBuf) {
         this(friendlyByteBuf.readByteArray());
@@ -17,11 +18,8 @@ private void write(FriendlyByteBuf friendlyByteBuf) {
         friendlyByteBuf.writeByteArray(this.data);
     }
 
+     @Override
     public CustomPacketPayload.@NonNull Type<PacketPayload> type() {
         return TYPE;
     }
-
-    public byte[] data() {
-        return this.data;
-    }
 }
\ No newline at end of file
diff --git a/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/SkinPayload.java b/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/SkinPayload.java
index a2507e5..900f00c 100644
--- a/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/SkinPayload.java
+++ b/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/SkinPayload.java
@@ -3,11 +3,12 @@
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.codec.StreamCodec;
 import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
 public record SkinPayload(byte[] data) implements CustomPacketPayload {
     public static final StreamCodec<FriendlyByteBuf, SkinPayload> STREAM_CODEC = CustomPacketPayload.codec(SkinPayload::write, SkinPayload::new);
-    public static final CustomPacketPayload.Type<SkinPayload> TYPE = CustomPacketPayload.createType("floodgate:skin");
+    public static final CustomPacketPayload.Type<SkinPayload> TYPE = new Type<>(ResourceLocation.parse("floodgate:skin"));
 
     private SkinPayload(FriendlyByteBuf friendlyByteBuf) {
         this(friendlyByteBuf.readByteArray());
@@ -17,11 +18,8 @@ private void write(FriendlyByteBuf friendlyByteBuf) {
         friendlyByteBuf.writeByteArray(this.data);
     }
 
+    @Override
     public CustomPacketPayload.@NonNull Type<SkinPayload> type() {
         return TYPE;
     }
-
-    public byte[] data() {
-        return this.data;
-    }
 }
\ No newline at end of file
diff --git a/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/TransferPayload.java b/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/TransferPayload.java
index b291b92..5c16b79 100644
--- a/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/TransferPayload.java
+++ b/src/main/java/org/geysermc/floodgate/pluginmessage/payloads/TransferPayload.java
@@ -3,11 +3,12 @@
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.codec.StreamCodec;
 import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
 public record TransferPayload(byte[] data) implements CustomPacketPayload {
     public static final StreamCodec<FriendlyByteBuf, TransferPayload> STREAM_CODEC = CustomPacketPayload.codec(TransferPayload::write, TransferPayload::new);
-    public static final CustomPacketPayload.Type<TransferPayload> TYPE = CustomPacketPayload.createType("floodgate:transfer");
+    public static final CustomPacketPayload.Type<TransferPayload> TYPE = new Type<>(ResourceLocation.parse("floodgate:transfer"));
 
     private TransferPayload(FriendlyByteBuf friendlyByteBuf) {
         this(friendlyByteBuf.readByteArray());
@@ -17,11 +18,8 @@ private void write(FriendlyByteBuf friendlyByteBuf) {
         friendlyByteBuf.writeByteArray(this.data);
     }
 
+    @Override
     public CustomPacketPayload.@NonNull Type<TransferPayload> type() {
         return TYPE;
     }
-
-    public byte[] data() {
-        return this.data;
-    }
 }
\ No newline at end of file
diff --git a/src/main/resources/fabric.mod.json b/src/main/resources/fabric.mod.json
index bdca63a..24b3009 100644
--- a/src/main/resources/fabric.mod.json
+++ b/src/main/resources/fabric.mod.json
@@ -24,8 +24,8 @@
     "floodgate.mixins.json"
   ],
   "depends": {
-    "fabricloader": ">=0.15.10",
+    "fabricloader": ">=0.15.11",
     "fabric": "*",
-    "minecraft": ">=1.20.5"
+    "minecraft": ">=1.21"
   }
 }
\ No newline at end of file
diff --git a/src/main/resources/floodgate.mixins.json b/src/main/resources/floodgate.mixins.json
index ca2c72e..ded3017 100644
--- a/src/main/resources/floodgate.mixins.json
+++ b/src/main/resources/floodgate.mixins.json
@@ -2,7 +2,7 @@
   "required": true,
   "minVersion": "0.8",
   "package": "org.geysermc.floodgate.mixin",
-  "compatibilityLevel": "JAVA_16",
+  "compatibilityLevel": "JAVA_21",
   "mixins": [
     "ChunkMapMixin",
     "ClientIntentionPacketMixin",