diff --git a/requirements.txt b/requirements.txt
index 274822a61..c5a0cf7ab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ pathos==0.2.3
 Pillow==6.0.0
 pox==0.2.5
 ppft==1.6.4.9
-protobuf==3.8.0
+protobuf==3.15.0
 psutil==5.6.2
 pycparser==2.19
 pygame==1.9.6