diff --git a/gradle.properties b/gradle.properties
index 01d1f02..b0c3eeb 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,9 +2,9 @@
 org.gradle.jvmargs=-Xmx1G
 
 # Fabric properties
-minecraft_version=20w20b
-yarn_mappings=20w20b+build.1
-loader_version=0.8.3+build.196
+minecraft_version=20w21a
+yarn_mappings=20w21a+build.2
+loader_version=0.8.4+build.198
 
 #Fabric api
 fabric_version=0.10.9+build.346-1.16
diff --git a/src/main/java/org/samo_lego/simpleauth/event/AuthEventHandler.java b/src/main/java/org/samo_lego/simpleauth/event/AuthEventHandler.java
index 231f52f..5793d56 100644
--- a/src/main/java/org/samo_lego/simpleauth/event/AuthEventHandler.java
+++ b/src/main/java/org/samo_lego/simpleauth/event/AuthEventHandler.java
@@ -111,12 +111,12 @@ public class AuthEventHandler {
 
             // Faking portal blocks to be air
             BlockUpdateS2CPacket feetPacket = new BlockUpdateS2CPacket();
-            ((BlockUpdateS2CPacketAccessor) feetPacket).setState(new BlockState(Blocks.AIR, null));
+            ((BlockUpdateS2CPacketAccessor) feetPacket).setState(new BlockState(Blocks.AIR, null, null));
             ((BlockUpdateS2CPacketAccessor) feetPacket).setBlockPos(pos);
             player.networkHandler.sendPacket(feetPacket);
 
             BlockUpdateS2CPacket headPacket = new BlockUpdateS2CPacket();
-            ((BlockUpdateS2CPacketAccessor) headPacket).setState(new BlockState(Blocks.AIR, null));
+            ((BlockUpdateS2CPacketAccessor) headPacket).setState(new BlockState(Blocks.AIR, null, null));
             ((BlockUpdateS2CPacketAccessor) headPacket).setBlockPos(pos.up());
             player.networkHandler.sendPacket(headPacket);