diff --git a/requirements.txt b/requirements.txt
index 0720f1f..21fc89e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -82,7 +82,7 @@ pexpect==4.2.1
 Pillow==8.1.1
 pkginfo==1.5.0.1
 pluggy==0.13.1
-protobuf==3.11.3
+protobuf==3.15.0
 psycopg2==2.8.4
 py==1.10.0
 py3plex==0.69