diff --git a/tools/requirements.txt b/tools/requirements.txt
old mode 100755
new mode 100644
index 76652cb..8f9df3a
--- a/tools/requirements.txt
+++ b/tools/requirements.txt
@@ -3,7 +3,7 @@ kiwisolver==1.1.0
 matplotlib==3.2.1
 numpy~=1.21
 pandas==1.0.3
-protobuf==3.11.3
+protobuf==3.18.3
 pyparsing==2.4.6
 python-dateutil==2.8.1
 pytz==2019.3