diff --git a/cheetah-server/minecraft-patches/sources/net/minecraft/server/network/ServerGamePacketListenerImpl.java.patch b/cheetah-server/minecraft-patches/sources/net/minecraft/server/network/ServerGamePacketListenerImpl.java.patch
index eb5428c..fb0faaa 100644
--- a/cheetah-server/minecraft-patches/sources/net/minecraft/server/network/ServerGamePacketListenerImpl.java.patch
+++ b/cheetah-server/minecraft-patches/sources/net/minecraft/server/network/ServerGamePacketListenerImpl.java.patch
@@ -1,6 +1,6 @@
 --- a/net/minecraft/server/network/ServerGamePacketListenerImpl.java
 +++ b/net/minecraft/server/network/ServerGamePacketListenerImpl.java
-@@ -2130,12 +_,23 @@
+@@ -2137,12 +_,23 @@
      }
  
      @Override
@@ -25,7 +25,7 @@
          // CraftBukkit end
          Optional<LastSeenMessages> optional = this.unpackAndApplyLastSeen(packet.lastSeenMessages());
          if (!optional.isEmpty()) {
-@@ -2148,6 +_,13 @@
+@@ -2155,6 +_,13 @@
                      return;
                  }
  
@@ -39,7 +39,7 @@
                  CompletableFuture<FilteredText> completableFuture = this.filterTextPacket(signedMessage.signedContent()).thenApplyAsync(Function.identity(), this.server.chatExecutor); // CraftBukkit - async chat
                  CompletableFuture<Component> componentFuture = this.server.getChatDecorator().decorate(this.player, null, signedMessage.decoratedContent()); // Paper - Adventure
  
-@@ -2200,8 +_,23 @@
+@@ -2207,8 +_,23 @@
  
      @Override
      public void handleSignedChatCommand(ServerboundChatCommandSignedPacket packet) {
@@ -63,7 +63,7 @@
              this.tryHandleChat(packet.command(), () -> {
                  // CraftBukkit start - SPIGOT-7346: Prevent disconnected players from executing commands
                  if (this.player.hasDisconnected()) {
-@@ -2310,9 +_,20 @@
+@@ -2317,9 +_,20 @@
          return new SignedMessageChain.DecodeException(INVALID_COMMAND_SIGNATURE);
      }
  
diff --git a/gradle.properties b/gradle.properties
index 71dc212..ac265d3 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,7 +1,7 @@
 group=net.gommehd.cheetah
 version=1.21.4-R0.1-SNAPSHOT
 mcVersion=1.21.4
-paperRef=73f7736eb93a64cc0270929cb01992404696d66d
+paperRef=7e21cb818132116efc5305777eb6d72f07431294
 
 org.gradle.configuration-cache=true
 org.gradle.caching=true