diff --git a/Cargo.toml b/Cargo.toml
index 3d4905e..a4c4c1f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mwatershed"
-version = "0.5.0"
+version = "0.5.1"
 edition = "2018"
 
 [dependencies]
diff --git a/mwatershed/__init__.py b/mwatershed/__init__.py
index 1a75efd..13995df 100644
--- a/mwatershed/__init__.py
+++ b/mwatershed/__init__.py
@@ -3,7 +3,7 @@
 
 __author__ = """William Hunter Patton"""
 __email__ = """pattonw@hhmi.org"""
-__version__ = """0.5.0"""
+__version__ = """0.5.1"""
 __version_info__ = tuple(int(n) for n in __version__.split("."))
 
 from .mwatershed import agglom_rs, cluster
diff --git a/pyproject.toml b/pyproject.toml
index fb243c6..b7741c3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "maturin"
 [project]
 authors = [{ name = "William Hunter Patton", email = "pattonw@hhmi.org" }]
 name = "mwatershed"
-version = "0.5.0"
+version = "0.5.1"
 description = "A rusty mutex watershed"
 readme = "README.md"
 
diff --git a/setup.cfg b/setup.cfg
index acbe1a0..b1538d8 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.5.0
+current_version = 0.5.1
 commit = True
 tag = True