diff --git a/requirements.txt b/requirements.txt
index 7cf85ca..802e01c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ paho-mqtt==1.5.0
 pandas==1.0.1
 pipenv==2018.11.26
 pprint==0.1
-protobuf==3.11.3
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pygame==1.9.6