diff --git a/requirements.txt b/requirements.txt
index 2238d49..89ae726 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ patsy==0.5.1
 pexpect==4.8.0
 pickleshare==0.7.5
 prompt-toolkit==3.0.3
-protobuf==3.11.3
+protobuf==3.18.3
 ptyprocess==0.6.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8