diff --git a/requirements.txt b/requirements.txt
index 6abf207..9ecbca3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Jinja2==2.8
 MarkupSafe==0.23
 MySQL-python==1.2.3; python_version < '3'
 Pillow==2.3.0
-PyPDF2==1.25.1
+PyPDF2==1.27.5
 Pygments==2.0.2
 Sphinx==1.3.3
 beautifulsoup4==4.4.0