diff --git a/.bump.cfg b/.bump.cfg
index f0e15a6..32a6c87 100644
--- a/.bump.cfg
+++ b/.bump.cfg
@@ -1,7 +1,7 @@
 date_fmt = 'YYYY-MM-DD'
 major = 2
 minor = 1
-patch = 1
+patch = 2
 date = [
     'quantiphy.py      __released__',
     'README.rst        Released',
diff --git a/README.rst b/README.rst
index 2a023c0..e0a4d95 100644
--- a/README.rst
+++ b/README.rst
@@ -1,8 +1,8 @@
 QuantiPhy - Physical Quantities
 ===============================
 
-| Version: 2.1.1
-| Released: 2017-08-07
+| Version: 2.1.2
+| Released: 2017-08-09
 |
 
 .. image:: https://img.shields.io/travis/KenKundert/quantiphy/master.svg
diff --git a/doc/conf.py b/doc/conf.py
index d181edb..d8324d0 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -48,7 +48,7 @@
 # built documents.
 #
 # The full version, including alpha/beta/rc tags.
-release = '2.1.1'
+release = '2.1.2'
 # The short X.Y version.
 version = '.'.join(release.split('.')[0:2])
 
diff --git a/doc/index.rst b/doc/index.rst
index 9226863..2777470 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -1,8 +1,8 @@
 QuantiPhy: Physical Quantities
 ==============================
 
-| Version: 2.1.1
-| Released: 2017-08-07
+| Version: 2.1.2
+| Released: 2017-08-09
 | Please post all bugs and suggestions at
   `Github <https://github.com/KenKundert/quantiphy/issues>`_
   (or contact me directly at
diff --git a/doc/releases.rst b/doc/releases.rst
index 7fc9b01..b5f0a23 100644
--- a/doc/releases.rst
+++ b/doc/releases.rst
@@ -54,5 +54,5 @@ Releases
     - removed constraint in extract() that names must be identifiers
 
 **Latest development release**:
-    | Version: 2.1.1
-    | Released: 2017-08-07
+    | Version: 2.1.2
+    | Released: 2017-08-09
diff --git a/quantiphy.py b/quantiphy.py
index f20a86c..1797837 100644
--- a/quantiphy.py
+++ b/quantiphy.py
@@ -277,8 +277,8 @@ def add_constant(value, alias=None, unit_systems=None):
             _constants[None][value.name] = value
 
 # Globals {{{1
-__version__ = '2.1.1'
-__released__ = '2017-08-07'
+__version__ = '2.1.2'
+__released__ = '2017-08-09'
 
 # These mappings are only used when reading numbers
 # The key for these mappings must be a single character
diff --git a/setup.py b/setup.py
index 3cc03a2..4632e9b 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 
 setup(
     name='quantiphy',
-    version='2.1.1',
+    version='2.1.2',
     description='physical quantities (numbers with units)',
     long_description=readme,
     author="Ken Kundert",