diff --git a/requirements.txt b/requirements.txt
index 4a7e618..0651be0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -79,7 +79,7 @@ portalocker==1.5.2
 -e git+https://github.com/alexandonian/pretorched-x@74f92fa0ed1c64fa4bc0c4aaf86f56d315cb0c45#egg=pretorched
 prometheus-client==0.7.1
 prompt-toolkit==3.0.3
-protobuf==3.11.2
+protobuf==3.18.3
 psutil==5.6.7
 ptyprocess==0.6.0
 pyasn1==0.4.8