diff --git a/requirements.txt b/requirements.txt
index 1959f48..fb95406 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -92,7 +92,7 @@ preshed==3.0.2
 prometheus-client==0.7.1
 promise==2.3
 prompt-toolkit==2.0.10
-protobuf==3.11.1
+protobuf==3.18.3
 psutil==5.6.7
 pyasn1==0.4.8
 pyasn1-modules==0.2.7