diff --git a/buildSrc/src/main/kotlin/Config.kts b/buildSrc/src/main/kotlin/Config.kts
index 21f91b1..9bf9aae 100644
--- a/buildSrc/src/main/kotlin/Config.kts
+++ b/buildSrc/src/main/kotlin/Config.kts
@@ -5,5 +5,5 @@ object ProjectConfig{
 }
 
 object PublicSdkConfig{
-    const val versionName = "4.2.6"
+    const val versionName = "4.2.7"
 }
\ No newline at end of file
diff --git a/zip_packages/TiCloudRTC_Android_SDK_4.2.2_release.zip b/zip_packages/TiCloudRTC_Android_SDK_4.2.2_release.zip
deleted file mode 100644
index 7875847..0000000
Binary files a/zip_packages/TiCloudRTC_Android_SDK_4.2.2_release.zip and /dev/null differ
diff --git a/zip_packages/TiCloudRTC_Android_SDK_4.2.3_release.zip b/zip_packages/TiCloudRTC_Android_SDK_4.2.3_release.zip
deleted file mode 100644
index 7e915ea..0000000
Binary files a/zip_packages/TiCloudRTC_Android_SDK_4.2.3_release.zip and /dev/null differ
diff --git a/zip_packages/TiCloudRTC_Android_SDK_4.2.4_release.zip b/zip_packages/TiCloudRTC_Android_SDK_4.2.4_release.zip
deleted file mode 100644
index 9e217c9..0000000
Binary files a/zip_packages/TiCloudRTC_Android_SDK_4.2.4_release.zip and /dev/null differ
diff --git a/zip_packages/TiCloudRTC_Android_SDK_4.2.5_release.zip b/zip_packages/TiCloudRTC_Android_SDK_4.2.5_release.zip
deleted file mode 100644
index 152cd41..0000000
Binary files a/zip_packages/TiCloudRTC_Android_SDK_4.2.5_release.zip and /dev/null differ
diff --git a/zip_packages/TiCloudRTC_Android_SDK_4.2.6_release.zip b/zip_packages/TiCloudRTC_Android_SDK_4.2.7_release.zip
similarity index 99%
rename from zip_packages/TiCloudRTC_Android_SDK_4.2.6_release.zip
rename to zip_packages/TiCloudRTC_Android_SDK_4.2.7_release.zip
index 635a2c2..3439ef2 100644
Binary files a/zip_packages/TiCloudRTC_Android_SDK_4.2.6_release.zip and b/zip_packages/TiCloudRTC_Android_SDK_4.2.7_release.zip differ