diff --git a/requirements.txt b/requirements.txt
index 1795ec4..1fb6f62 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ isort==4.3.21
 lazy-object-proxy==1.4.2
 mccabe==0.6.1
 Pillow==6.2.1
-protobuf==3.10.0
+protobuf==3.15.0
 psycopg2-binary==2.8.3
 pyasn1==0.4.7
 pyasn1-modules==0.2.7