diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index dd841a9f..af3be1dc 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.5.5
+current_version = 0.5.6
 commit = True
 tag = True
 tag_name = {new_version}
diff --git a/tipg/__init__.py b/tipg/__init__.py
index ca594daf..60f042d6 100644
--- a/tipg/__init__.py
+++ b/tipg/__init__.py
@@ -1,3 +1,3 @@
 """tipg."""
 
-__version__ = "0.5.5"
+__version__ = "0.5.6"