diff --git a/requirements.txt b/requirements.txt
index ded8f10915231c199745cc07a9151a309bc4f6b9..0faf2e3ba5f0b43f4289486d53f31809516c1039 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -58,4 +58,4 @@ Shapely==1.2.16
 ipython==0.13.1
 xmltodict==0.4.1
 paramiko==1.9.0
-pillow
+Pillow==1.7.8