diff --git a/MANIFEST.in b/MANIFEST.in
deleted file mode 100644
index c68d12e4..00000000
--- a/MANIFEST.in
+++ /dev/null
@@ -1,16 +0,0 @@
-include CITATION.rst
-include CHANGES.rst
-include CODE_OF_CONDUCT.rst
-include LICENSE.rst
-include README.rst
-include pyproject.toml
-
-recursive-include ccdproc *.pyx *.c *.pxd
-recursive-include docs *
-recursive-include licenses *
-
-prune build
-prune docs/_build
-prune docs/api
-
-global-exclude *.pyc *.o
diff --git a/ccdproc/conftest.py b/ccdproc/conftest.py
new file mode 100644
index 00000000..38a3277b
--- /dev/null
+++ b/ccdproc/conftest.py
@@ -0,0 +1,35 @@
+# Licensed under a 3-clause BSD style license - see LICENSE.rst
+
+# this contains imports plugins that configure py.test for astropy tests.
+# by importing them here in conftest.py they are discoverable by py.test
+# no matter how it is invoked within the source tree.
+
+try:
+    # When the pytest_astropy_header package is installed
+    from pytest_astropy_header.display import PYTEST_HEADER_MODULES, TESTED_VERSIONS
+
+    def pytest_configure(config):
+        config.option.astropy_header = True
+
+except ImportError:
+    PYTEST_HEADER_MODULES = {}
+    TESTED_VERSIONS = {}
+
+
+from .tests.pytest_fixtures import (
+    triage_setup,  # noqa: F401 this is used in tests
+)
+
+# This is to figure out ccdproc version, rather than using Astropy's
+try:
+    from ccdproc import __version__ as version
+except ImportError:
+    version = "dev"
+
+TESTED_VERSIONS["ccdproc"] = version
+
+# Add astropy to test header information and remove unused packages.
+PYTEST_HEADER_MODULES["Astropy"] = "astropy"
+PYTEST_HEADER_MODULES["astroscrappy"] = "astroscrappy"
+PYTEST_HEADER_MODULES["reproject"] = "reproject"
+PYTEST_HEADER_MODULES.pop("h5py", None)
diff --git a/conftest.py b/conftest.py
index bf01a714..c4fdb9e5 100644
--- a/conftest.py
+++ b/conftest.py
@@ -15,11 +15,6 @@ def pytest_configure(config):
     PYTEST_HEADER_MODULES = {}
     TESTED_VERSIONS = {}
 
-
-from ccdproc.tests.pytest_fixtures import (
-    triage_setup,  # noqa: F401 this is used in tests
-)
-
 # This is to figure out ccdproc version, rather than using Astropy's
 try:
     from ccdproc import __version__ as version
diff --git a/pyproject.toml b/pyproject.toml
index e1c78c10..b1f70b73 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,6 +48,8 @@ version-file = "ccdproc/_version.py"
 [tool.hatch.build.targets.sdist]
 include = [
     "/ccdproc",
+    "/docs",
+    "/licenses",
 ]
 
 [tool.black]
@@ -72,6 +74,8 @@ extend-exclude = '''
         "*/ccdproc/*setup*",
         "*/ccdproc/*/tests/*",
         "*/ccdproc/tests/*",
+        "*/conftest.py",
+        "*/ccdproc/conftest.py"
     ]
 
     [tool.coverage.report]