diff --git a/.jazzy.yaml b/.jazzy.yaml
index e2799206..cc2bb546 100644
--- a/.jazzy.yaml
+++ b/.jazzy.yaml
@@ -10,4 +10,4 @@ github_url: https://github.com/ArcBlock/arcblock-ios-sdk
 github_file_prefix: https://github.com/ArcBlock/arcblock-ios-sdk/tree/master
 exclude:
   - ArcBlockSDK/ABSDKCoreKit/Network/ABSDKPagination.swift
-module_version: 0.11.42
+module_version: 0.11.43
diff --git a/ArcBlockSDK.podspec b/ArcBlockSDK.podspec
index 991244ec..8d24f2b2 100644
--- a/ArcBlockSDK.podspec
+++ b/ArcBlockSDK.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'ArcBlockSDK'
-  s.version          = '0.11.42'
+  s.version          = '0.11.43'
   s.summary          = 'Used to integrate iOS apps with ArcBlock Platform.'
 
 # This description is used to generate tags and improve search results.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 06187b19..d8cb48f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.11.43 (December 04, 2023)
+  - update prottobuf
+
 ## 0.11.42 (November 07, 2023)
   - fix depends
 
diff --git a/version b/version
index f0e26a96..ce157ad3 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-0.11.42
+0.11.43