diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 38c9e54b..3403bdcc 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.18.0
+current_version = 0.18.1
 commit = True
 tag = True
 
diff --git a/CITATION.cff b/CITATION.cff
index fe6afa27..58d4ebf1 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -5,7 +5,7 @@ authors:
   given-names: "Łukasz"
   orcid: "https://orcid.org/0000-0001-9986-1262"
 title: "mendeleev - A Python package with properties of chemical elements, ions, isotopes and methods to manipulate and visualize periodic table."
-version: 0.18.0
+version: 0.18.1
 doi: 10.5281/zenodo.5233824
 date-released: 2021-03-20
 url: "https://github.com/lmmentel/mendeleev"
\ No newline at end of file
diff --git a/README.md b/README.md
index dfe777ed..1760fecc 100644
--- a/README.md
+++ b/README.md
@@ -105,7 +105,7 @@ the [conda-forge Anaconda channel](https://anaconda.org/conda-forge/mendeleev)
 channel by
 
 ``` {.sourceCode .bash}
-conda install -c lmmentel mendeleev=0.18.0
+conda install -c lmmentel mendeleev=0.18.1
 ```
 
 The package can also be installed using
@@ -521,7 +521,7 @@ Here\'s the reference in the
    author = {Mentel, Łukasz},
    title = {{mendeleev} -- A Python resource for properties of chemical elements, ions and isotopes},
    url = {https://github.com/lmmentel/mendeleev},
-   version = {0.18.0},
+   version = {0.18.1},
    date = {2014--},
 }
 ```
@@ -531,7 +531,7 @@ or the older [BibTeX](http://www.bibtex.org/) format
 ``` {.sourceCode .latex}
 @misc{mendeleev2014,
    auhor = {Mentel, Łukasz},
-   title = {mendeleev} -- A Python resource for properties of chemical elements, ions and isotopes, ver. 0.18.0},
+   title = {mendeleev} -- A Python resource for properties of chemical elements, ions and isotopes, ver. 0.18.1},
    howpublished = {\url{https://github.com/lmmentel/mendeleev}},
    year  = {2014--},
 }
diff --git a/conda-recipe/meta.yaml b/conda-recipe/meta.yaml
index b443b6f3..9f98be01 100644
--- a/conda-recipe/meta.yaml
+++ b/conda-recipe/meta.yaml
@@ -1,10 +1,10 @@
 package:
   name: mendeleev
-  version: "0.18.0"
+  version: "0.18.1"
 
 source:
   git_url: https://github.com/lmmentel/mendeleev
-  git_rev: v0.18.0
+  git_rev: v0.18.1
 
 build:
   noarch: python
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 848847da..cbcb1e94 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -127,9 +127,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = "0.18.0"  # Is set by calling `setup.py docs`
+version = "0.18.1"  # Is set by calling `setup.py docs`
 # The full version, including alpha/beta/rc tags.
-release = "0.18.0"  # Is set by calling `setup.py docs`
+release = "0.18.1"  # Is set by calling `setup.py docs`
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/docs/source/install.rst b/docs/source/install.rst
index d2ed2a61..01dbd3f7 100644
--- a/docs/source/install.rst
+++ b/docs/source/install.rst
@@ -20,4 +20,4 @@ the package from `my anaconda channel <https://anaconda.org/lmmentel/mendeleev>`
 
 .. code-block:: bash
 
-   conda install -c lmmentel mendeleev=0.18.0
+   conda install -c lmmentel mendeleev=0.18.1
diff --git a/docs/source/quick.rst b/docs/source/quick.rst
index 5c9c519a..dda16d5d 100644
--- a/docs/source/quick.rst
+++ b/docs/source/quick.rst
@@ -39,7 +39,7 @@ Here's the reference in the `BibLaTeX <https://www.ctan.org/pkg/biblatex?lang=en
       author = {Mentel, Łukasz},
       title = {{mendeleev} -- A Python resource for properties of chemical elements, ions and isotopes},
       url = {https://github.com/lmmentel/mendeleev},
-      version = {0.18.0},
+      version = {0.18.1},
       date = {2014--},
   }
 
@@ -49,7 +49,7 @@ or the older `BibTeX <http://www.bibtex.org/>`_ format
 
    @misc{mendeleev2014,
       auhor = {Mentel, Łukasz},
-      title = {mendeleev} -- A Python resource for properties of chemical elements, ions and isotopes, ver. 0.18.0},
+      title = {mendeleev} -- A Python resource for properties of chemical elements, ions and isotopes, ver. 0.18.1},
       howpublished = {\url{https://github.com/lmmentel/mendeleev}},
       year  = {2014--},
    }
diff --git a/mendeleev/__init__.py b/mendeleev/__init__.py
index b09ebf52..a5fb3bd2 100644
--- a/mendeleev/__init__.py
+++ b/mendeleev/__init__.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-__version__ = "0.18.0"
+__version__ = "0.18.1"
 
 import importlib
 
diff --git a/pyproject.toml b/pyproject.toml
index e8f3d725..ebdb08aa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "mendeleev"
-version = "v0.18.0"
+version = "v0.18.1"
 description = "Pythonic periodic table of elements"
 keywords = ["periodic table", "chemistry", "elements", "science"]
 classifiers = [
diff --git a/setup.py b/setup.py
index d90dc0c7..5c3553da 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
 DOWNLOAD_URL = "https://github.com/lmmentel/mendeleev/archive/master.zip"
 AUTHOR = "Lukasz Mentel"
 EMAIL = "lmmentel@gmail.com"
-VERSION = "0.18.0"
+VERSION = "0.18.1"
 KEYWORDS = ["periodic", "table", "elements", "atomic", "properties", "mendeleev"]