diff --git a/Source/SocketIO/Engine/SocketEngine.swift b/Source/SocketIO/Engine/SocketEngine.swift
index 98a15fd..1c7ec78 100644
--- a/Source/SocketIO/Engine/SocketEngine.swift
+++ b/Source/SocketIO/Engine/SocketEngine.swift
@@ -216,7 +216,7 @@ public final class SocketEngine : NSObject, URLSessionDelegate, SocketEnginePoll
 
     private func checkAndHandleEngineError(_ msg: String) {
         do {
-            let dict = try msg.toNSDictionary()
+            let dict = try msg.toDictionary()
             guard let error = dict["message"] as? String else { return }
 
             /*
@@ -419,7 +419,7 @@ public final class SocketEngine : NSObject, URLSessionDelegate, SocketEnginePoll
     }
 
     private func handleOpen(openData: String) {
-        guard let json = try? openData.toNSDictionary() else {
+        guard let json = try? openData.toDictionary() else {
             didError(reason: "Error parsing open packet")
 
             return
diff --git a/Source/SocketIO/Util/SocketExtensions.swift b/Source/SocketIO/Util/SocketExtensions.swift
index 72933f4..bf3622c 100644
--- a/Source/SocketIO/Util/SocketExtensions.swift
+++ b/Source/SocketIO/Util/SocketExtensions.swift
@@ -114,9 +114,9 @@ extension String {
         return array
     }
 
-    func toNSDictionary() throws -> NSDictionary {
+    func toDictionary() throws -> [String: Any] {
         guard let binData = data(using: .utf16, allowLossyConversion: false) else { return [:] }
-        guard let json = try JSONSerialization.jsonObject(with: binData, options: .allowFragments) as? NSDictionary else {
+        guard let json = try JSONSerialization.jsonObject(with: binData, options: .allowFragments) as? [String: Any] else {
             throw JSONError.notNSDictionary
         }