diff --git a/requirements.txt b/requirements.txt
index 13f3a80..87f6167 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ parso==0.5.1
 pexpect==4.7.0
 pickleshare==0.7.5
 prompt-toolkit==2.0.10
-protobuf==3.10.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 pyglet==1.3.2
 Pygments==2.4.2