diff --git a/dgraph/requirements.txt b/dgraph/requirements.txt
index 95b7cfc..ab25069 100644
--- a/dgraph/requirements.txt
+++ b/dgraph/requirements.txt
@@ -44,7 +44,7 @@ pickleshare==0.7.5
 Pillow==8.3.2
 prometheus-client==0.8.0
 prompt-toolkit==3.0.7
-protobuf==3.13.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 pycparser==2.20
 pydantic==1.6.2