diff --git a/src/main/java/net/elytrium/fastmotd/dummy/DummyPlayer.java b/src/main/java/net/elytrium/fastmotd/dummy/DummyPlayer.java
index c161ecf..4619085 100644
--- a/src/main/java/net/elytrium/fastmotd/dummy/DummyPlayer.java
+++ b/src/main/java/net/elytrium/fastmotd/dummy/DummyPlayer.java
@@ -17,6 +17,7 @@
 
 package net.elytrium.fastmotd.dummy;
 
+import com.velocitypowered.api.network.ProtocolState;
 import com.velocitypowered.api.network.ProtocolVersion;
 import com.velocitypowered.api.permission.Tristate;
 import com.velocitypowered.api.proxy.ConnectionRequestBuilder;
@@ -172,12 +173,12 @@ public void sendResourcePackOffer(ResourcePackInfo packInfo) {
 
   @Override
   public Collection<ResourcePackInfo> getAppliedResourcePacks() {
-    return null;
+    throw new IllegalStateException();
   }
 
   @Override
   public Collection<ResourcePackInfo> getPendingResourcePacks() {
-    return null;
+    throw new IllegalStateException();
   }
 
   @Override
@@ -230,6 +231,11 @@ public ProtocolVersion getProtocolVersion() {
     return null;
   }
 
+  @Override
+  public ProtocolState getProtocolState() {
+    return null;
+  }
+
   @Override
   public IdentifiedKey getIdentifiedKey() {
     return null;