diff --git a/README.md b/README.md
index df6427e..27373b8 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 [![Build Status](https://travis-ci.org/rgmining/fraudar.svg?branch=master)](https://travis-ci.org/rgmining/fraudar)
 [![wercker status](https://app.wercker.com/status/0187c42cbf06f25156d1cc6bf6ca6ae8/s/master "wercker status")](https://app.wercker.com/project/byKey/0187c42cbf06f25156d1cc6bf6ca6ae8)
 [![Code Climate](https://codeclimate.com/github/rgmining/fraudar/badges/gpa.svg)](https://codeclimate.com/github/rgmining/fraudar)
-[![Release](https://img.shields.io/badge/release-0.5.1-brightgreen.svg)](https://github.com/rgmining/fraudar/releases/tag/v0.5.1)
+[![Release](https://img.shields.io/badge/release-0.5.2-brightgreen.svg)](https://github.com/rgmining/fraudar/releases/tag/v0.5.2)
 
 This package implements a wrapper of
 [FRAUDAR](https://www.andrew.cmu.edu/user/bhooi/projects/fraudar/index.html)
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 9df8b0f..06dfdb5 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -70,7 +70,7 @@
 # The short X.Y version.
 version = u'0.5'
 # The full version, including alpha/beta/rc tags.
-release = u'0.5.1'
+release = u'0.5.2'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/requirements.txt b/requirements.txt
index 1128fce..6818a33 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,4 @@
 #
 numpy>=1.11
 scikit-learn>=0.18
-scipy>=0.18
+scipy>=0.17
diff --git a/setup.py b/setup.py
index 095e5b1..f04b581 100644
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,7 @@ def _load_requires_from_file(filepath):
 
 setup(
     name='rgmining-fraudar',
-    version='0.5.1',
+    version='0.5.2',
     author="Junpei Kawamoto",
     author_email="kawamoto.junpei@gmail.com",
     description="A wrapper of Fraudar algorithm for Review graph mining project",