diff --git a/requirements.txt b/requirements.txt
index 68149b0..3ca37a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ passlib==1.7.1
 pdfkit==0.6.1
 pexpect==4.2.1
 Pillow==5.1.0
-protobuf==3.9.1
+protobuf==3.18.3
 psutil==5.4.2
 psycopg2==2.7.6.1
 pusher==2.0.1