diff --git a/texttospeech/cloud-client/requirements.txt b/texttospeech/cloud-client/requirements.txt
index 597306701ec..4fd188de740 100644
--- a/texttospeech/cloud-client/requirements.txt
+++ b/texttospeech/cloud-client/requirements.txt
@@ -1 +1 @@
-google-cloud-texttospeech==0.2.0
+google-cloud-texttospeech==0.1.0