diff --git a/translation/samples/snippets/hybrid_glossaries/requirements.txt b/translation/samples/snippets/hybrid_glossaries/requirements.txt
index 86b3d1b39596..24dfa3063dd0 100644
--- a/translation/samples/snippets/hybrid_glossaries/requirements.txt
+++ b/translation/samples/snippets/hybrid_glossaries/requirements.txt
@@ -1,3 +1,3 @@
 google-cloud-translate==3.0.0
 google-cloud-vision==2.0.0
-google-cloud-texttospeech==2.1.0
+google-cloud-texttospeech==2.2.0