diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index b31fb08..7f75e3b 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -89,6 +89,11 @@
 *;
 }
 
+-keep class com.ciscowebex.androidsdk.message.LocalFile{*;}
+-keep public class com.ciscowebex.androidsdk.internal.IOmniusServiceBridge {*;}
+-keep class com.ciscowebex.androidsdk.message.LocalFileWrapper { *; }
+-keep class com.ciscowebex.androidsdk.message.MessageClient$ProgressHandler { *; }
+
 -keep class com.ciscowebex.androidsdk.utils.internal.NetworkHelper
 -keep class com.ciscowebex.androidsdk.utils.internal.NetworkHelper.**
 -keepclassmembers class com.ciscowebex.androidsdk.utils.internal.NetworkHelper {
@@ -117,7 +122,4 @@
 
 -keep enum com.ciscowebex.androidsdk.utils.internal.NetTypes{
 *;
-}
--keep class com.cisco.newb.** {
- *;
- }
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/buildSrc/src/main/java/com/ciscowebex/androidsdk/build/Dependencies.kt b/buildSrc/src/main/java/com/ciscowebex/androidsdk/build/Dependencies.kt
index a8db595..b0dc226 100644
--- a/buildSrc/src/main/java/com/ciscowebex/androidsdk/build/Dependencies.kt
+++ b/buildSrc/src/main/java/com/ciscowebex/androidsdk/build/Dependencies.kt
@@ -5,10 +5,10 @@ object Versions {
     const val koin= "2.2.3"
 
     const val ndkVersion = "24.0.8215888"
-    const val buildTools = "30.0.3"
+    const val buildTools = "33.0.2"
 
     const val compileSdk = 33
-    const val targetSdk = 29
+    const val targetSdk = 33
     const val minSdk = 24
 
     const val cmake = "3.24.0+"