diff --git a/setup.py b/setup.py
index 1ec4718..4d146ee 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@ def get_info(name):
     py_modules=['pdfbookmarker'],
     url='https://github.com/RussellLuo/pdfbookmarker',
     install_requires=[
-        'PyPDF2==1.26.0',
+        'PyPDF2==1.27.9',
     ],
     entry_points={
         'console_scripts': [