diff --git a/requirements.txt b/requirements.txt
index 5c1e98e..5a9e310 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ SQLObject==3.4.0
 redis==2.10.6
 cloudconvert==1.0.0
 itchat==1.3.9
-PyPDF2==1.26.0
+PyPDF2==1.27.5