diff --git a/requirements.txt b/requirements.txt
index a994b6c..b9558ea 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,7 +46,7 @@ pandas==0.25.3
 pexpect==4.6.0
 Pillow==5.2.0
 pluggy==0.12.0
-protobuf==3.0.0
+protobuf==3.15.0
 psycopg2-binary==2.8.2
 py==1.8.0
 pycairo==1.16.2