diff --git a/CHANGELOG.md b/CHANGELOG.md
index 35b0bfe..3c10f33 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v4.8.5 (May 24, 2023)
+
+### Improvements
+- Fixed `MessageCollectionDelegate.messageCollection(_:context:channel:updatedMessages:)` to be invoked after sending a message via API fallback
+- Fixed `GroupChannelCollectionDelegate.channelCollection(_:context:addedChannels:)` to not be invoked for added messages until `loadMore` is called in `GroupChannelCollection`
+
 ## v4.8.4 (May 17, 2023)
 
 ### Improvements
diff --git a/Package.swift b/Package.swift
index 7794bad..a73729e 100644
--- a/Package.swift
+++ b/Package.swift
@@ -15,8 +15,8 @@ let package = Package(
     targets: [
         .binaryTarget(
             name: "SendbirdChatSDK",
-            url: "https://github.com/sendbird/sendbird-chat-sdk-ios/releases/download/v4.8.4/SendbirdChatSDK.xcframework.zip",
-            checksum: "2491ae210126bc379733fde0f84efb12d3002e0bbca452f04a81863667a2944b"
+            url: "https://github.com/sendbird/sendbird-chat-sdk-ios/releases/download/v4.8.5/SendbirdChatSDK.xcframework.zip",
+            checksum: "905f6b94b01508bb29d259df81e50fec7e9ec10672944db83eddad4050049e04"
         ),
     ]
 )
diff --git a/SendbirdChatSDK.podspec b/SendbirdChatSDK.podspec
index c4d4db2..212d852 100644
--- a/SendbirdChatSDK.podspec
+++ b/SendbirdChatSDK.podspec
@@ -1,7 +1,7 @@
 
 Pod::Spec.new do |s|
   s.name         = 'SendbirdChatSDK'
-  s.version      = "4.8.4"
+  s.version      = "4.8.5"
   s.summary      = 'Sendbird Chat iOS Framework'
   s.description  = 'Messaging and Chat API for Mobile Apps and Websites'
   s.homepage     = 'https://sendbird.com'
@@ -13,7 +13,7 @@ Pod::Spec.new do |s|
     'Celine Moon' => 'celine.moon@sendbird.com',
     'Ernest Hong' => 'ernest.hong@sendbird.com'
   }
-  s.source       = { :http => "https://github.com/sendbird/sendbird-chat-sdk-ios/releases/download/v4.8.4/SendbirdChatSDK.zip", :sha1 => "8267db54f5dc2d9d6e283551a8e16c091ee99501" }
+  s.source       = { :http => "https://github.com/sendbird/sendbird-chat-sdk-ios/releases/download/v4.8.5/SendbirdChatSDK.zip", :sha1 => "5286746f79f1b269e114db98e028dcb37d63752c" }
   s.requires_arc = true
   s.platform = :ios, '11.0'
   s.documentation_url = 'https://sendbird.com/docs/chat'