diff --git a/requirements.txt b/requirements.txt
index 98d8dda..be2163d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,4 +10,4 @@ resampy==0.2.1
 pretty-midi==0.2.8
 tensorboard==1.10.0
 tensorflow==1.10.0
-protobuf==3.6.1
+protobuf==3.18.3