Install dev wheels properly

tox.ini

@@ -57,12 +57,15 @@ deps =
     jwst: jwst[test] @ git+https://github.com/spacetelescope/jwst.git
     romancal: romancal[test] @ git+https://github.com/spacetelescope/romancal.git
     oldestdeps: minimum_dependencies
+    devdeps: numpy>=0.0.dev0
+    devdeps: scipy>=0.0.dev0
+    devdeps: astropy>=0.0.dev0
 use_develop = true
 pass_env =
     CI
     WEBBPSF_PATH
 set_env =
-    devdeps: PIP_EXTRA_INDEX_URL = https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
+    devdeps: PIP_EXTRA_INDEX_URL = https://pypi.anaconda.org/astropy/simple https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
     jwst: CRDS_SERVER_URL=https://jwst-crds.stsci.edu
     romancal: CRDS_SERVER_URL=https://roman-crds.stsci.edu
     jwst,romancal: CRDS_PATH={package_root}/crds_cache
@@ -71,7 +74,6 @@ set_env =
 commands_pre =
     oldestdeps: minimum_dependencies stcal --filename requirements-min.txt
     oldestdeps: pip install -r requirements-min.txt
-    devdeps: pip install numpy>=0.0.dev0 scipy>=0.0.dev0 git+https://github.com/astropy/astropy -U --upgrade-strategy eager
     pip freeze
 commands =
     pytest \