diff --git a/Package.swift b/Package.swift
index f713550..725bef3 100755
--- a/Package.swift
+++ b/Package.swift
@@ -16,7 +16,7 @@ let package = Package(
     dependencies: [
         .package(
             url: "https://github.com/AgoraIO/AgoraRtcEngine_iOS.git",
-            .upToNextMajor(from: "4.0.1")
+            .upToNextMajor(from: "4.1.1")
         ),
         .package(
             url: "https://github.com/apple/swift-protobuf.git",
diff --git a/README.md b/README.md
index ba4a38c..6cc10ae 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ A supporting library for the Agora Interactive Live Streaming SDK for use with F
 This supporting library assumes basic familiarity with Agora. If needed, read over the Agora [Documentation](https://docs.agora.io/en/Interactive%20Broadcast/landing-page) before diving in.
 
 
-**The supporting library only supports Agora SDK 4.0.1 or higher. Using the supporting library alongside a version of Agora SDK below 4.0.1 may result in undefined behavior.**
+**The supporting library only supports Agora SDK 4.1.1 or higher. Using the supporting library alongside a version of Agora SDK below 4.1.1 may result in undefined behavior.**
 
 ## FireworkVideo SDK Documentation