diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 978a7d2..999763a 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.3.0
+current_version = 1.4.0
 commit = False
 tag = False
 
diff --git a/Makefile b/Makefile
index d95cde0..5952199 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,7 @@ bundle: coverage
 
 .PHONY: release-test
 release-test:
-	poetry run twine upload --repository-url https://test.pypi.org/legacy/dist/django_idempotency_key-1.3.0.tar.gz
+	poetry run twine upload --repository-url https://test.pypi.org/legacy/dist/django_idempotency_key-1.4.0.tar.gz
 
 .PHONY: release
 release: coverage
diff --git a/pyproject.toml b/pyproject.toml
index edd4f8b..1f5ea2b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "django-idempotency-key"
-version = "1.3.0"
+version = "1.4.0"
 description = "Django middleware for idempotency key support in view and viewset functions."
 authors = ["YoyoDevs <dev@yoyowallet.com>"]
 license = "MIT"