diff --git a/old-demo/requirements.txt b/old-demo/requirements.txt
index 98c7821a..68dd5e71 100644
--- a/old-demo/requirements.txt
+++ b/old-demo/requirements.txt
@@ -1,5 +1,5 @@
 geopy==1.11.0
 gpsoauth==0.3.0
-protobuf==2.6.1
+protobuf==3.18.3
 pycryptodomex==3.4.2
 requests==2.10.0