diff --git a/requirements.txt b/requirements.txt
index 72283f5..cbe24c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ pandas==0.23.4
 Pillow==5.3.0
 pipreqs==0.4.9
 progress==1.4
-protobuf==3.6.1
+protobuf==3.15.0
 pyasn1==0.4.4
 pyasn1-modules==0.2.2
 pycryptodome==3.4.3