diff --git a/single_stage_detector/ssd/requirements.txt b/single_stage_detector/ssd/requirements.txt
old mode 100755
new mode 100644
index d040846..4a02765
--- a/single_stage_detector/ssd/requirements.txt
+++ b/single_stage_detector/ssd/requirements.txt
@@ -5,7 +5,7 @@ cycler==0.10.0
 kiwisolver==1.0.1
 matplotlib==2.2.2
 numpy==1.14.5
-Pillow==5.2.0
+Pillow==9.0.1
 pyparsing==2.2.0
 python-dateutil==2.7.3
 pytz==2018.5