diff --git a/requirements2.txt b/requirements2.txt
old mode 100755
new mode 100644
index d526e73..0881346
--- a/requirements2.txt
+++ b/requirements2.txt
@@ -84,7 +84,7 @@ pluggy==0.8.0
 preshed==1.0.1
 prettytable==0.7.2
 prompt-toolkit==2.0.7
-protobuf==3.6.1
+protobuf==3.18.3
 ptyprocess==0.6.0
 py==1.7.0
 pyaml==17.12.1