diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 234e3a6..0ff3c0a 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,5 +1,5 @@
 {% set name = "hpo-toolkit" %}
-{% set version = "0.3.1post1" %}
+{% set version = "0.3.2dev0" %}
 
 package:
   name: {{ name|lower }}
diff --git a/src/hpotk/__init__.py b/src/hpotk/__init__.py
index fc8ea80..a1ea0f4 100644
--- a/src/hpotk/__init__.py
+++ b/src/hpotk/__init__.py
@@ -2,7 +2,7 @@
 HPO toolkit is a library for working with Human Phenotype Ontology and the HPO annotation data.
 """
 
-__version__ = "0.3.1post1"
+__version__ = "0.3.2dev0"
 
 from . import algorithm
 from . import annotations