diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 24d57e4..e68ff9f
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,7 +69,7 @@ paramiko==2.7.1
 pathspec==0.5.9
 Pillow==7.1.2
 prettytable==0.7.2
-protobuf==3.12.2
+protobuf==3.18.3
 psycopg2-binary==2.8.5
 pyasn1==0.4.8
 pyasn1-modules==0.2.8