diff --git a/requirements.txt b/requirements.txt
index 462f30c..6053f40 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -71,7 +71,7 @@ Pillow==6.2.2
 pkg-resources==0.0.0
 prometheus-client==0.9.0
 prompt-toolkit==1.0.18
-protobuf==3.14.0
+protobuf==3.18.3
 psutil==5.7.3
 ptyprocess==0.6.0
 pyasn1==0.4.8