diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index bbf14c08..7c1cd480 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,2 +1,2 @@
 future==0.18.2
-google-cloud-texttospeech==2.0.0
+google-cloud-texttospeech==2.1.0