diff --git a/requirements.txt b/requirements.txt
index 23864b8..5ced2f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,7 +46,7 @@ opt-einsum==3.1.0
 osnap==0.3.1
 path==14.0.1
 pefile==2019.4.18
-protobuf==3.11.4
+protobuf==3.15.0
 psutil==5.7.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.7