diff --git a/requirements.txt b/requirements.txt
index 0091ad2..6459cfe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ parso==0.2.1
 pexpect==4.6.0
 pickleshare==0.7.4
 prompt-toolkit==1.0.15
-protobuf==3.6.0
+protobuf==3.18.3
 ptyprocess==0.5.2
 pyfasttext==0.4.5
 Pygments==2.2.0