diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 901b697..817a5ac
--- a/requirements.txt
+++ b/requirements.txt
@@ -86,7 +86,7 @@ Pillow==5.3.0
 plotly==4.5.0
 prometheus-client==0.3.1
 prompt-toolkit==1.0.15
-protobuf==3.6.1
+protobuf==3.18.3
 prov==1.5.3
 ptyprocess==0.6.0
 pyasn1==0.4.3