diff --git a/httpoptions/pom.xml b/httpoptions/pom.xml
old mode 100755
new mode 100644
index f91570c..d68cb25
--- a/httpoptions/pom.xml
+++ b/httpoptions/pom.xml
@@ -26,7 +26,7 @@
 		<!-- gRPC -->
 		<grpc.version>1.18.0</grpc.version>
 		<!-- ProtoBuf -->
-		<protobuf.version>3.6.1</protobuf.version>
+		<protobuf.version>3.16.1</protobuf.version>
 		<!-- Googleapis -->
 		<googleapis.version>0.0.3</googleapis.version>