diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 16569a1..b598442 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.4.0
+current_version = 1.5.0
 tag = False
 commit = False
 parse = ^
diff --git a/src/rxn/chemutils/__init__.py b/src/rxn/chemutils/__init__.py
index fb9f06c..86358f8 100644
--- a/src/rxn/chemutils/__init__.py
+++ b/src/rxn/chemutils/__init__.py
@@ -1 +1 @@
-__version__ = "1.4.0"  # managed by bump2version
+__version__ = "1.5.0"  # managed by bump2version