diff --git a/requirements.txt b/requirements.txt
index 5d3c5e2..791f336 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ plotly==4.5.0
 pmdarima==1.5.2
 prometheus-client==0.7.1
 prompt-toolkit==3.0.3
-protobuf==3.11.2
+protobuf==3.18.3
 ptyprocess==0.6.0
 pydeck==0.2.1
 Pygments==2.5.2