diff --git a/requirements/pip-requirements.txt b/requirements/pip-requirements.txt
index f65e225..6ed05b0 100644
--- a/requirements/pip-requirements.txt
+++ b/requirements/pip-requirements.txt
@@ -25,7 +25,7 @@ parso==0.5.0
 pexpect==4.7.0
 pickleshare==0.7.5
 prompt-toolkit==2.0.9
-protobuf==3.9.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 pudb==2019.1
 pycodestyle==2.5.0