diff --git a/checkcert/checkcert.py b/checkcert/checkcert.py
index da58eeb..b7316d9 100644
--- a/checkcert/checkcert.py
+++ b/checkcert/checkcert.py
@@ -10,7 +10,7 @@ from cryptography.x509.oid import NameOID
 import idna
 
 
-__version__ = "0.3.0"
+__version__ = "0.4.0"
 
 HostInfo = namedtuple(
     field_names="cert hostname peername is_valid", typename="HostInfo"
diff --git a/pyproject.toml b/pyproject.toml
index a968dae..db63213 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "checkcert"
-version = "0.3.0"
+version = "0.4.0"
 description = "CLI to check tls cert information and determine validity"
 authors = ["Alex Kelly <kellya@arachnitech.com>"]
 readme = "README.md"