diff --git a/pyproject.toml b/pyproject.toml
index cfc5229..5576145 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "ais-tools"
 description = "Tools for managing AIS messages"
 readme = "README.md"
-version = "v0.1.7.dev4"
+version = "v0.1.7.dev5"
 license = {file = "LICENSE"}
 authors = [
     {name = "Paul Woods", email = "paul@globalfishingwatch.org"},