diff --git a/requirements.txt b/requirements.txt
index 7c3be85..30cda1e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ certifi==2020.6.20
 chardet==3.0.4
 idna==2.10
 multidict==4.7.6
-protobuf==3.12.2
+protobuf==3.18.3
 pycryptodome==3.9.8
 PyExecJS==1.5.1
 requests==2.26.0