diff --git a/google-assistant-sdk/googlesamples/assistant/grpc/requirements.txt b/google-assistant-sdk/googlesamples/assistant/grpc/requirements.txt
index e2369e4..a5e817b 100644
--- a/google-assistant-sdk/googlesamples/assistant/grpc/requirements.txt
+++ b/google-assistant-sdk/googlesamples/assistant/grpc/requirements.txt
@@ -1,6 +1,6 @@
 google-assistant-grpc==0.0.2
 google-auth-oauthlib==0.1.0
-urllib3[secure]==1.20
+urllib3[secure]==1.21.1
 sounddevice==0.3.7
 click==6.7
 tenacity==4.1.0