diff --git a/requirements.txt b/requirements.txt
index 09dbfb6..e3365d0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ idna==2.8
 itsdangerous==1.1.0
 Jinja2==2.11.1
 MarkupSafe==1.1.1
-protobuf==3.11.2
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 python-dotenv==0.10.5