diff --git a/requirements.txt b/requirements.txt
index 4f0840c..5820a85 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ parso==0.1.0
 pexpect==4.2.1
 pickleshare==0.7.4
 prompt-toolkit==1.0.15
-protobuf==3.15.0
+protobuf==3.18.3
 ptyprocess==0.5.2
 Pygments==2.7.4
 PyYAML==5.4