diff --git a/ChangeLog.md b/ChangeLog.md
index 018baf32..74a799ed 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,6 +1,9 @@
 BIOM-Format ChangeLog
 =====================
 
+biom-2.1.16-dev
+---------------
+
 biom 2.1.16
 -----------
 
diff --git a/biom/util.py b/biom/util.py
index 666fdc26..afa53b2b 100644
--- a/biom/util.py
+++ b/biom/util.py
@@ -41,7 +41,7 @@
 __maintainer__ = "Daniel McDonald"
 __email__ = "daniel.mcdonald@colorado.edu"
 __format_version__ = (2, 1)
-__version__ = "2.1.16"
+__version__ = "2.1.16-dev"
 
 
 def generate_subsamples(table, n, axis='sample', by_id=False):
diff --git a/doc/conf.py b/doc/conf.py
index 8e72498f..9cba15e6 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -64,8 +64,8 @@
 # built documents.
 #
 # The full version, including alpha/beta/rc tags.
-version = "2.1.16"
-release = "2.1.16"
+version = "2.1.16-dev"
+release = "2.1.16-dev"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.py b/setup.py
index fd6f1d79..d940c05d 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@
 __credits__ = ["Greg Caporaso", "Daniel McDonald", "Jose Clemente",
                "Jai Ram Rideout", "Jorge Cañardo Alastuey", "Michael Hall"]
 __license__ = "BSD"
-__version__ = "2.1.16"
+__version__ = "2.1.16-dev"
 __maintainer__ = "Daniel McDonald"
 __email__ = "mcdonadt@colorado.edu"