diff --git a/dialogflow/requirements.txt b/dialogflow/requirements.txt
index 9c721a3848d7..75fb1cdab5ac 100644
--- a/dialogflow/requirements.txt
+++ b/dialogflow/requirements.txt
@@ -1,2 +1,2 @@
 google-cloud-dialogflow==2.15.0
-Flask==2.1.3
+Flask==2.2.0