diff --git a/requirements.txt b/requirements.txt
index a451cb7..811b16b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,8 @@
 attrs==16.3.0
 beautifulsoup4==4.4.1
 html5lib==0.999
-Pillow==3.0.0
+olefile==0.44
+Pillow==4.0.0
 requests==2.11.1
 requests-cache==0.4.12
 six==1.6.1