diff --git a/pyproject.toml b/pyproject.toml
index dad5f1e..7a915cc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "sphractal"
-version = "1.1.12"
+version = "1.1.13"
 description = "Package to estimate fractal dimension of 3D surfaces formed from overlapping spheres via box-counting algorithm."
 authors = ["Jonathan Yik Chang Ting <jonting97@gmail.com>"]
 license = "MIT"
diff --git a/setup.py b/setup.py
index f79ae5e..8eebafd 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 import setuptools
 
 
-__version__ = '1.1.12'
+__version__ = '1.1.13'
 with open('README.md', 'r') as fh:
     long_description = fh.read()