diff --git a/Mac/ImSDK/README.md b/Mac/ImSDK/README.md
index a9df87807a3..00c31a76419 100644
--- a/Mac/ImSDK/README.md
+++ b/Mac/ImSDK/README.md
@@ -2,4 +2,4 @@
 
 ## 下载地址
 
-[最新ImSDK.framework下载](https://imsdk-1252463788.cos.ap-guangzhou.myqcloud.com/4.6.50/TIM_SDK_Mac_latest_framework.zip)
+[最新ImSDK.framework下载](https://imsdk-1252463788.cos.ap-guangzhou.myqcloud.com/4.6.51/TIM_SDK_Mac_latest_framework.zip)
diff --git a/Mac/TUIKitDemo/Podfile.lock b/Mac/TUIKitDemo/Podfile.lock
index ab899b50cd2..059c91df475 100644
--- a/Mac/TUIKitDemo/Podfile.lock
+++ b/Mac/TUIKitDemo/Podfile.lock
@@ -1,5 +1,5 @@
 PODS:
-  - TXIMSDK_Mac (4.6.50)
+  - TXIMSDK_Mac (4.6.51)
 
 DEPENDENCIES:
   - TXIMSDK_Mac
@@ -9,7 +9,7 @@ SPEC REPOS:
     - TXIMSDK_Mac
 
 SPEC CHECKSUMS:
-  TXIMSDK_Mac: f94b057eb471693103b3cb7e28e0ce0b6878ce14
+  TXIMSDK_Mac: db90898f6e296e38a9c7dd466c5e3f4acb8a3646
 
 PODFILE CHECKSUM: 0c88f6ca862b7c2352a7f12a7cd8e2e22db41b5a
 
diff --git a/Mac/TXIMSDK_Mac.podspec b/Mac/TXIMSDK_Mac.podspec
index a867865c7ac..803d08fa381 100644
--- a/Mac/TXIMSDK_Mac.podspec
+++ b/Mac/TXIMSDK_Mac.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
   spec.name         = 'TXIMSDK_Mac'
-  spec.version      = '4.6.50'
+  spec.version      = '4.6.51'
   spec.platform     = :osx  
   spec.osx.deployment_target = '10.10'
   spec.license      = { :type => 'Proprietary',
@@ -15,7 +15,7 @@ Pod::Spec.new do |spec|
   
   spec.requires_arc = true
 
-  spec.source = { :http => 'https://imsdk-1252463788.cos.ap-guangzhou.myqcloud.com/4.6.50/TIM_SDK_Mac_latest_framework.zip'}
+  spec.source = { :http => 'https://imsdk-1252463788.cos.ap-guangzhou.myqcloud.com/4.6.51/TIM_SDK_Mac_latest_framework.zip'}
   spec.preserve_paths = '**/ImSDKForMac.framework'
   spec.source_files = '**/ImSDKForMac.framework/Versions/A/Headers/*.h'
   spec.public_header_files = '**/ImSDKForMac.framework/Versions/A/Headers/*.h'