diff --git a/requirements.txt b/requirements.txt
index af79bb8..d1495a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ mysql-connector-python
 numpy==1.18.5
 oauthlib==3.1.0
 opt-einsum==3.2.1
-protobuf==3.12.2
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycares==3.1.1