diff --git a/requirements.txt b/requirements.txt
index 43d8ead..752ae1c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -87,7 +87,7 @@ pox==0.2.4
 ppft==1.6.4.8
 prometheus-client==0.3.1
 prompt-toolkit==1.0.15
-protobuf==3.6.1
+protobuf==3.18.3
 psutil==5.6.6
 ptyprocess==0.6.0
 pyarrow==0.11.1