diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 29e41ff..dbc4cee
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ astroML==0.3
 astropy==1.3.2
 requests==2.13.0
 bs4==0.0.1
-tensorflow==1.3.0
+tensorflow==1.15.2
 keras==2.0.8
 lxml==4.1.1
 tqdm==4.19.5