diff --git a/nodeserver/worker/requirements.txt b/nodeserver/worker/requirements.txt
index 566a4b2..64adbda 100644
--- a/nodeserver/worker/requirements.txt
+++ b/nodeserver/worker/requirements.txt
@@ -14,7 +14,7 @@ Markdown==3.1.1
 numpy==1.17.3
 opt-einsum==3.1.0
 Pebble==4.4.0
-protobuf==3.10.0
+protobuf==3.15.0
 psutil==5.6.3
 requests==2.22.0
 six==1.12.0