diff --git a/requirements.txt b/requirements.txt
index b4d2dbe..8000a85 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ numpy==1.16.2
 pandas==0.24.2
 Pillow==7.0.0
 playsound==1.2.2
-protobuf==3.7.1
+protobuf==3.15.0
 psutil==5.6.3
 pycparser==2.20
 pyparsing==2.4.6