diff --git a/sdk/build.gradle b/sdk/build.gradle
index 5710939a..bd2db2c3 100644
--- a/sdk/build.gradle
+++ b/sdk/build.gradle
@@ -20,12 +20,6 @@ android {
         compileSdk compile_sdk_version
         buildConfigField "int", "VERSION_CODE", "$omise_sdk_code_version"
         buildConfigField "String", "VERSION_NAME", "\"$omise_sdk_version\""
-        buildConfigField "String", "NETCETERA_API_KEY", "\"${System.getenv('NETCETERA_API_KEY')}\""
-        buildConfigField "String", "SCHEME_NAME", "\"${System.getenv('SCHEME_NAME')}\""
-        buildConfigField "String", "DS_ID", "\"${System.getenv('DS_ID')}\""
-        buildConfigField "String", "MESSAGE_VERSION", "\"${System.getenv('MESSAGE_VERSION')}\""
-        buildConfigField "String", "ACS_REF_NUMBER", "\"${System.getenv('ACS_REF_NUMBER')}\""
-        buildConfigField "String", "DS_PUBLIC_KEY", "\"${System.getenv('DS_PUBLIC_KEY')}\""
         testInstrumentationRunner "co.omise.android.OmiseTestRunner"
     }