diff --git a/minecraft/__init__.py b/minecraft/__init__.py
index 6b938c9..1a46ae2 100644
--- a/minecraft/__init__.py
+++ b/minecraft/__init__.py
@@ -238,6 +238,7 @@ SUPPORTED_MINECRAFT_VERSIONS = {
     '20w15a':               711,
     '20w16a':               712,
     '20w17a':               713,
+    '20w18a':               714,
 }
 
 # Those Minecraft versions supported by pyCraft which are "release" versions,
diff --git a/minecraft/networking/packets/clientbound/play/__init__.py b/minecraft/networking/packets/clientbound/play/__init__.py
index 8c602d0..394f930 100644
--- a/minecraft/networking/packets/clientbound/play/__init__.py
+++ b/minecraft/networking/packets/clientbound/play/__init__.py
@@ -279,6 +279,7 @@ class RespawnPacket(Packet):
         {'hashed_seed': Long} if context.protocol_version >= 552 else {},
         {'game_mode': UnsignedByte},
         {'level_type': String},
+        {'copy_metadata': Boolean},
     ])
 
     # These aliases declare the Enum type corresponding to each field: