diff --git a/packages/google-cloud-texttospeech/samples/snippets/requirements-test.txt b/packages/google-cloud-texttospeech/samples/snippets/requirements-test.txt
index 781d4326c947..f7e3ec09da60 100644
--- a/packages/google-cloud-texttospeech/samples/snippets/requirements-test.txt
+++ b/packages/google-cloud-texttospeech/samples/snippets/requirements-test.txt
@@ -1 +1 @@
-pytest==5.3.2
+pytest==6.2.3