diff --git a/www/requirements.txt b/www/requirements.txt
index 323308c..e9828f7 100644
--- a/www/requirements.txt
+++ b/www/requirements.txt
@@ -34,7 +34,7 @@ opencv-python==4.1.2.30
 opt-einsum==3.1.0
 pathtools==0.1.2
 Pillow==6.2.1
-protobuf==3.11.1
+protobuf==3.15.0
 pycparser==2.19
 PyMySQL==0.9.2
 pyparsing==2.4.5