diff --git a/requirements.txt b/requirements.txt
index 9dc60b2..25cbad1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ MarkupSafe==1.1.1
 mccabe==0.6.1
 pendulum==2.0.4
 pip-tools==3.4.0
-protobuf==3.7.1
+protobuf==3.18.3
 pyasn1==0.4.5
 pyasn1-modules==0.2.5
 pycparser==2.19