diff --git a/GraphSAINT/requirements.txt b/GraphSAINT/requirements.txt
index 146a84c..79f43e7 100644
--- a/GraphSAINT/requirements.txt
+++ b/GraphSAINT/requirements.txt
@@ -19,7 +19,7 @@ Markdown==3.3.3
 numpy==1.19.5
 oauthlib==3.1.0
 opt-einsum==3.3.0
-protobuf==3.14.0
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 PyYAML==5.4.1