diff --git a/google-assistant-sdk/googlesamples/assistant/grpc/requirements.txt b/google-assistant-sdk/googlesamples/assistant/grpc/requirements.txt
index 7b526e2..2b490e2 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==0.2.1
 google-auth-oauthlib>=0.1.0,<0.3
-urllib3[secure]>=1.21,<2
+urllib3>=1.21,<2
 sounddevice>=0.3.7,<0.4
 click>=6.7,<7
 tenacity>=4.1.0,<5