diff --git a/requirements.txt b/requirements.txt
index ded8f10915..0faf2e3ba5 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