diff --git a/requirements.txt b/requirements.txt
index fad4d26..37da3d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ Pillow==7.0.0
 playsound==1.2.2
 plotly==4.3.0
 prompt-toolkit==2.0.10
-protobuf==3.8.0
+protobuf==3.15.0
 psycopg2==2.8.2
 pycparser==2.19
 Pygments==2.4.2