diff --git a/requirements.txt b/requirements.txt
index 816cd01..fd443a7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ opencv-python==4.2.0.32
 packaging==20.3
 Pillow==7.2.0
 pluggy==0.13.1
-protobuf==3.11.3
+protobuf==3.15.0
 psutil==5.7.0
 py==1.8.1
 PyOpenGL==3.1.5