diff --git a/requirements.txt b/requirements.txt
index 279bfd5..497d049 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ numpy==1.18.2
 pathlib
 pika==1.1.0
 Pillow==7.0.0
-protobuf==3.11.3
+protobuf==3.18.3
 py==1.8.0
 pymongo==3.10.1
 pytest==5.3.0