diff --git a/requirements.txt b/requirements.txt
index c4836ae..933b7e1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 Pillow==2.4.0
-PyPDF2==1.21
+PyPDF2==1.27.5
 reportlab==3.1.8
 wsgiref==0.1.2