diff --git a/speech/grpc/src/main/java/com/google/cloud/speech/grpc/demos/NonStreamingRecognizeClient.java b/speech/grpc/src/main/java/com/google/cloud/speech/grpc/demos/NonStreamingRecognizeClient.java
index 3e413a71fa3..d7b7d70af08 100644
--- a/speech/grpc/src/main/java/com/google/cloud/speech/grpc/demos/NonStreamingRecognizeClient.java
+++ b/speech/grpc/src/main/java/com/google/cloud/speech/grpc/demos/NonStreamingRecognizeClient.java
@@ -68,7 +68,7 @@ public class NonStreamingRecognizeClient {
       Logger.getLogger(NonStreamingRecognizeClient.class.getName());
 
   private static final List<String> OAUTH2_SCOPES =
-      Arrays.asList("https://www.googleapis.com/auth/xapi.zoo");
+      Arrays.asList("https://www.googleapis.com/auth/cloud-platform");
 
   private final String host;
   private final int port;
diff --git a/speech/grpc/src/main/java/com/google/cloud/speech/grpc/demos/RecognizeClient.java b/speech/grpc/src/main/java/com/google/cloud/speech/grpc/demos/RecognizeClient.java
index e6cd8dd737b..16ccc7caa65 100644
--- a/speech/grpc/src/main/java/com/google/cloud/speech/grpc/demos/RecognizeClient.java
+++ b/speech/grpc/src/main/java/com/google/cloud/speech/grpc/demos/RecognizeClient.java
@@ -78,7 +78,7 @@ public class RecognizeClient {
   private final SpeechGrpc.SpeechStub stub;
 
   private static final List<String> OAUTH2_SCOPES =
-      Arrays.asList("https://www.googleapis.com/auth/xapi.zoo");
+      Arrays.asList("https://www.googleapis.com/auth/cloud-platform");
 
   /**
    * Construct client connecting to Cloud Speech server at {@code host:port}.