diff --git a/hbd/__init__.py b/hbd/__init__.py
index 3622136..185757f 100644
--- a/hbd/__init__.py
+++ b/hbd/__init__.py
@@ -14,4 +14,4 @@ Install options:
 """
 
 __all__ = ["__version__"]
-__version__ = "5.1.8"
+__version__ = "5.1.9"
diff --git a/pyproject.toml b/pyproject.toml
index 941a838..8e3a645 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "hbd"
-version = "5.1.8"
+version = "5.1.9"
 description = "Heartbeat monitoring system — client (hbc) and server (hbd)"
 readme = "README.md"
 requires-python = ">=3.11"