diff --git a/requirements.txt b/requirements.txt
index 58e63c4..98bb7c0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 six==1.10.0
-Pillow==2.2.1
+Pillow==4.3.0
 mock==1.0.1
 nose==1.3.0