diff --git a/requirements.txt b/requirements.txt
index a3aec1d..ddecff3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ pickleshare==0.7.5
 Pillow==9.0.0
 pkg-resources==0.0.0
 prompt-toolkit==2.0.10
-protobuf==3.12.2
+protobuf==3.18.3
 ptyprocess==0.6.0
 pyaml==20.4.0
 pyasn1==0.4.8