diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 394e743..9aacaf8
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ oauthlib==1.0.3
 olefile==0.44
 Pillow==4.3.0
 prettytable==0.7.2
-protobuf==3.5.1
+protobuf==3.18.3
 pyasn1==0.1.9
 pycurl==7.43.0
 pygobject==3.20.0