diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c8312dfc..07fb3701 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -71,6 +71,8 @@ jobs:
           python-version: 3.11
         - linux: test-xdist-cov
           coverage: codecov
+        - linux: test-xdist-devdeps
+          python-version: 3.11
   test_downstream:
     uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@main
     needs: [ crds ]
@@ -84,3 +86,4 @@ jobs:
       cache-key: crds-${{ needs.crds.outputs.context }}
       envs: |
         - linux: test-jwst-xdist-cov
+        - linux: test-jwst-xdist-devdeps
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 00000000..21c175dd
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,11 @@
+git+https://github.com/astropy/asdf-astropy
+git+https://github.com/asdf-format/asdf
+
+# Use weekly astropy dev build
+--extra-index-url https://pypi.anaconda.org/astropy/simple astropy --pre
+
+# Use Bi-weekly numpy/scipy dev builds
+--extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
+numpy>=0.0.dev0
+# even though we don't need scipy some deps might and it's version is tightly linked to numpy
+scipy>=0.0.dev0
diff --git a/tox.ini b/tox.ini
index 1ee2a2a3..3129280e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 envlist =
     check-{style,security,build}
-    test{,-jwst,-devdeps}-xdist{,-cov}
+    test{,-jwst}{,-devdeps}-xdist{,-cov}
     build-{docs,dist}
 
 # tox environments are constructed with so-called 'factors' (or terms)
@@ -37,7 +37,6 @@ description =
 pass_env =
     CRDS_*
 set_env =
-    devdeps: PIP_EXTRA_INDEX_URL = https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
     cov: COVERAGE_RC_FILE=pyproject.toml
 extras =
     test
@@ -50,7 +49,7 @@ package=
     cov: editable
     !cov: wheel
 commands_pre =
-    devdeps: pip install numpy>=0.0.dev0 git+https://github.com/astropy/astropy -U --upgrade-strategy eager
+    devdeps: pip install -r requirements-dev.txt -U --upgrade-strategy eager
     pip freeze
 commands =
     pytest \