diff --git a/requirements.txt b/requirements.txt
index 09a1999..fe6498e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -124,7 +124,7 @@ pickleshare==0.7.4
 Pillow==4.2.1
 ply==3.9
 prompt-toolkit==1.0.9
-protobuf==3.6.1
+protobuf==3.18.3
 psutil==5.0.1
 py==1.4.32
 pyasn1==0.1.9