diff --git a/src/main/java/it/tdlight/reactiveapi/InstanceSettings.java b/src/main/java/it/tdlight/reactiveapi/InstanceSettings.java
index f715f67..7cf2734 100644
--- a/src/main/java/it/tdlight/reactiveapi/InstanceSettings.java
+++ b/src/main/java/it/tdlight/reactiveapi/InstanceSettings.java
@@ -2,6 +2,7 @@ package it.tdlight.reactiveapi;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import java.util.List;
 import java.util.Set;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -26,14 +27,14 @@ public class InstanceSettings {
 	/**
 	 * If {@link #client} is false, this will transform resulting events <b>before</b> being sent
 	 */
-	public @Nullable Set<Class<? extends ResultingEventTransformer>> resultingEventTransformers;
+	public @Nullable List<Class<? extends ResultingEventTransformer>> resultingEventTransformers;
 
 	@JsonCreator
 	public InstanceSettings(@JsonProperty(required = true, value = "id") @NotNull String id,
 			@JsonProperty(required = true, value = "client") boolean client,
 			@JsonProperty("clientAddress") @Nullable String clientAddress,
 			@JsonProperty("resultingEventTransformers") @Nullable
-					Set<Class<? extends ResultingEventTransformer>> resultingEventTransformers) {
+					List<Class<? extends ResultingEventTransformer>> resultingEventTransformers) {
 		this.id = id;
 		this.client = client;
 		this.clientAddress = clientAddress;