diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..890c3fc
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,4 @@
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
diff --git a/setup.py b/setup.py
index abea3ff..7c7e579 100644
--- a/setup.py
+++ b/setup.py
@@ -1,11 +1,14 @@
-from xstatic.pkg import bootstrap as xs
+import os, sys
+setup_dir = os.path.dirname(__file__)
+sys.path.insert(0, os.path.join(setup_dir, "xstatic"))
+from pkg import bootstrap as xs
 
 # The README.txt file should be written in reST so that PyPI can use
 # it to generate your project's PyPI page. 
 with open('README.txt') as f:
     long_description = f.read()
 
-from setuptools import setup, find_packages
+from setuptools import setup, find_namespace_packages
 
 setup(
     name=xs.PACKAGE_NAME,
@@ -19,10 +22,8 @@
     license=xs.LICENSE,
     url=xs.HOMEPAGE,
     platforms=xs.PLATFORMS,
-    packages=find_packages(),
-    namespace_packages=['xstatic', 'xstatic.pkg', ],
+    packages=find_namespace_packages(),
     include_package_data=True,
     zip_safe=False,
-    install_requires=[],  # nothing! :)
-                          # if you like, you MAY use the 'XStatic' package.
+    install_requires=["XStatic >= 2.0.0, < 3.0.0"],
 )
diff --git a/xstatic/__init__.py b/xstatic/__init__.py
deleted file mode 100644
index de40ea7..0000000
--- a/xstatic/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-__import__('pkg_resources').declare_namespace(__name__)
diff --git a/xstatic/pkg/__init__.py b/xstatic/pkg/__init__.py
deleted file mode 100644
index de40ea7..0000000
--- a/xstatic/pkg/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-__import__('pkg_resources').declare_namespace(__name__)
diff --git a/xstatic/pkg/bootstrap/__init__.py b/xstatic/pkg/bootstrap/__init__.py
index 8df98e3..1d8ed60 100644
--- a/xstatic/pkg/bootstrap/__init__.py
+++ b/xstatic/pkg/bootstrap/__init__.py
@@ -13,7 +13,7 @@
 
 VERSION = '4.5.3' # version of the packaged files, please use the upstream
                   # version number
-BUILD = '1' # our package build number, so we can release new builds
+BUILD = '2' # our package build number, so we can release new builds
              # with fixes for xstatic stuff.
 PACKAGE_VERSION = VERSION + '.' + BUILD # version used for PyPi