diff --git a/heisskleber/__init__.py b/heisskleber/__init__.py
index 1b16b1d..a59d1a8 100644
--- a/heisskleber/__init__.py
+++ b/heisskleber/__init__.py
@@ -16,4 +16,4 @@ __all__ = [
     "AsyncSink",
     "AsyncSource",
 ]
-__version__ = "0.5.5"
+__version__ = "0.5.6"
diff --git a/pyproject.toml b/pyproject.toml
index 1661647..902b797 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "heisskleber"
-version = "0.5.5"
+version = "0.5.6"
 description = "Heisskleber"
 authors = ["Felix Weiler <felix@flucto.tech>"]
 license = "MIT"