diff --git a/Code/V1/src/p300_service/requirements.txt b/Code/V1/src/p300_service/requirements.txt
index 27f6c5c3..44844edd 100644
--- a/Code/V1/src/p300_service/requirements.txt
+++ b/Code/V1/src/p300_service/requirements.txt
@@ -46,7 +46,7 @@ scipy==1.1.0
 seaborn==0.9.0
 six==1.11.0
 socketIO-client==0.7.2
-urllib3==1.23
+urllib3==1.26.5
 websocket-client==0.53.0
 websockets==5.0.1
 Werkzeug==0.14.1