diff --git a/requirements.txt b/requirements.txt
index a5c7844..4c16bdb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ pluggy==0.13.1
 plumbum==1.6.9
 promise==2.3
 prompt-toolkit==3.0.5
-protobuf==3.11.3
+protobuf==3.15.0
 psycopg2==2.8.4
 ptyprocess==0.6.0
 py==1.8.1