diff --git a/build.gradle b/build.gradle
index e7a9a52e81..d9147dd127 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,7 +20,7 @@ plugins {
 	id 'net.fabricmc.filament'
 }
 
-def minecraft_version = "1.20.3-pre4"
+def minecraft_version = "1.20.3-rc1"
 
 filament {
 	minecraftVersion = minecraft_version
diff --git a/mappings/net/minecraft/network/packet/s2c/play/ExplosionS2CPacket.mapping b/mappings/net/minecraft/network/packet/s2c/play/ExplosionS2CPacket.mapping
index 44548d6a99..aefc2be227 100644
--- a/mappings/net/minecraft/network/packet/s2c/play/ExplosionS2CPacket.mapping
+++ b/mappings/net/minecraft/network/packet/s2c/play/ExplosionS2CPacket.mapping
@@ -45,8 +45,6 @@ CLASS net/minecraft/class_2664 net/minecraft/network/packet/s2c/play/ExplosionS2
 		ARG 3 buf2
 		ARG 4 pos
 	METHOD method_55327 readParticleEffect (Lnet/minecraft/class_2540;Lnet/minecraft/class_2396;)Lnet/minecraft/class_2394;
-		ARG 0 buf
-		ARG 1 particleType
 	METHOD method_55328 getDestructionType ()Lnet/minecraft/class_1927$class_4179;
 	METHOD method_55329 getParticle ()Lnet/minecraft/class_2394;
 	METHOD method_55330 getEmitterParticle ()Lnet/minecraft/class_2394;