diff --git a/requirements.txt b/requirements.txt
index bc31a73..57cb949 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ oauthlib==3.1.0
 opencv-python==4.2.0.32
 parsimonious==0.8.1
 Pillow==7.0.0
-protobuf==3.11.3
+protobuf==3.18.3
 pycryptodome==3.9.7
 pyrsistent==0.16.0
 requests==2.23.0