diff --git a/requirements.txt b/requirements.txt
index 571b4d7..3fc720b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -83,7 +83,7 @@ Pillow==5.1.0
 plotly==2.6.0
 pluggy==0.6.0
 prompt-toolkit==1.0.15
-protobuf==3.5.2.post1
+protobuf==3.18.3
 psutil==5.4.5
 ptyprocess==0.5.2
 py==1.5.3