diff --git a/requirements.txt b/requirements.txt
index 8bcd247..d3947c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -81,7 +81,7 @@ pickleshare==0.7.4
 pluggy==0.8.0
 prometheus-client==0.3.1
 prompt-toolkit==1.0.15
-protobuf==3.6.1
+protobuf==3.18.3
 ptyprocess==0.6.0
 py==1.7.0
 pyarrow==0.11.0