diff --git a/DBTunner/src-CDBTune/AutoTuner/requirements.txt b/DBTunner/src-CDBTune/AutoTuner/requirements.txt
old mode 100755
new mode 100644
index ae528ea76..08d09d988
--- a/DBTunner/src-CDBTune/AutoTuner/requirements.txt
+++ b/DBTunner/src-CDBTune/AutoTuner/requirements.txt
@@ -1,6 +1,6 @@
 MySQL-python==1.2.3
 numpy==1.13.3
 scipy==0.13.3
-requests==2.18.4
+requests==2.20.0
 torch==0.3.1
 psutil==5.4.6