diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index da851f5..847248d 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.3.2
+current_version = 0.4.0
 commit = False
 allow_dirty = True
 
diff --git a/pyproject.toml b/pyproject.toml
index 6637156..bb96288 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "sco1-pylox"
-version = "0.3.2"
+version = "0.4.0"
 description = "A Python interpreter for the Lox programming language."
 authors = ["sco1 <sco1.git@gmail.com>"]