diff --git a/.github/workflows/downstream.yml b/.github/workflows/downstream.yml
index fe160534b..74a3643e8 100644
--- a/.github/workflows/downstream.yml
+++ b/.github/workflows/downstream.yml
@@ -55,6 +55,7 @@ jobs:
       # Any env name which does not start with `pyXY` will use this Python version.
       default_python: '3.10'
       envs: |
+        - linux: astrocut
         - linux: gwcs
         - linux: jwst
         - linux: stdatamodels
diff --git a/tox.ini b/tox.ini
index 236090b0e..c741492ad 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,6 +4,7 @@ env_list =
     coverage
     py{39,310,311,312}{,-compatibility,-coverage,-jsonschema}{,-devdeps}{,-parallel}
     asdf{-standard,-transform-schemas,-unit-schemas,-wcs-schemas,-coordinates-schemas,-astropy,-zarr,-compression}
+    astrocut
     gwcs
     jwst
     stdatamodels
@@ -188,6 +189,21 @@ commands_pre =
 commands =
     pytest specutils
 
+[testenv:astrocut]
+change_dir = {env_tmp_dir}
+allowlist_externals =
+    git
+    bash
+extras =
+commands_pre =
+    bash -c "pip freeze -q | grep 'asdf @' > {env_tmp_dir}/requirements.txt"
+    git clone https://github.com/spacetelescope/astrocut.git
+    pip install -e astrocut[test]
+    pip install -r {env_tmp_dir}/requirements.txt
+    pip freeze
+commands =
+    pytest astrocut
+
 [testenv:gwcs]
 change_dir = {env_tmp_dir}
 allowlist_externals =