diff --git a/CHANGELOG.md b/CHANGELOG.md
index bef24c0..3be1a1b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Version 0.20
+## Version 0.20.0
 
 * Add `tiger.get_sizes_for_queues_and_states` ([352](https://github.com/closeio/tasktiger/pull/352))
 
diff --git a/tasktiger/__init__.py b/tasktiger/__init__.py
index 1d80f3b..bad76d5 100644
--- a/tasktiger/__init__.py
+++ b/tasktiger/__init__.py
@@ -12,7 +12,7 @@
 from .tasktiger import TaskTiger, run_worker
 from .worker import Worker
 
-__version__ = "0.20"
+__version__ = "0.20.0"
 __all__ = [
     "TaskTiger",
     "Worker",