diff --git a/Makefile b/Makefile
index 81d3fd0..93d9b6a 100644
--- a/Makefile
+++ b/Makefile
@@ -24,4 +24,5 @@ i-have-tested-with-testpypi-and-am-ready-to-release:
 	python3 -m twine upload --repository pypi dist/django_admin_confirm-$(VERSION)
 
 install-testpypi:
+	pip uninstall django_admin_confirm
 	python -m pip install --index-url https://test.pypi.org/simple/ django_admin_confirm==${VERSION}
diff --git a/setup.py b/setup.py
index 9f8ad2c..b08919f 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@ README = open(os.path.join(here, "README.md")).read()
 
 setup(
     name="django-admin-confirm",
-    version="0.2.3.dev3",
+    version="0.2.3.dev4",
     packages=["admin_confirm"],
     description="Adds confirmation to Django Admin changes, additions and actions",
     long_description_content_type="text/markdown",