diff --git a/requirements.txt b/requirements.txt
index a5b2fee..e84f09d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -89,7 +89,7 @@ Pillow==6.2.1
 pluginlib==1.11.3
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-protobuf==3.10.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 pyan==1.0.4.dev2+gb6cd0c6
 pyasn1==0.4.7