diff --git a/requirements-worker.txt b/requirements-worker.txt
index 4e9b84a..5ec3cf5 100644
--- a/requirements-worker.txt
+++ b/requirements-worker.txt
@@ -28,7 +28,7 @@ numpy==1.15.4
 pandas==0.23.4
 pbr==5.1.1
 Pillow==6.2.0
-protobuf==3.6.1
+protobuf==3.15.0
 PyBrain==0.3
 python-dateutil==2.7.5
 pytz==2018.7