diff --git a/requirements.txt b/requirements.txt
index 1437a6da..447e8492 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
-aggdraw===1.1-64bits
+aggdraw===2.0
 colour==0.1.2
 numpy==1.11.0
-Pillow==3.2.0
+Pillow==1.7.8
 progressbar==2.3
 scipy==0.17.1
 tqdm==4.7.1