diff --git a/pyproject.toml b/pyproject.toml
index 93c4318f7..39d5a745b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,9 @@ classifiers = [
 ]
 dependencies = [
     "astropy >=5.0.4",
+    "drizzle>=1.15.0",
     "scipy >=1.7.2",
+    "scikit-image>=0.19",
     "numpy >=1.21.2",
     "opencv-python-headless >=4.6.0.66",
     "asdf >=2.15.0",
diff --git a/tox.ini b/tox.ini
index 91fc6868f..435655f96 100644
--- a/tox.ini
+++ b/tox.ini
@@ -52,8 +52,12 @@ deps =
     oldestdeps: minimum_dependencies
     devdeps: numpy>=0.0.dev0
     devdeps: scipy>=0.0.dev0
+    devdeps: scikit-image>=0.0.dev0
     devdeps: pyerfa>=0.0.dev0
     devdeps: astropy>=0.0.dev0
+    devdeps: asdf @ git+https://github.com/asdf-format/asdf.git
+    devdeps: drizzle @ git+https://github.com/spacetelescope/drizzle.git
+    devdeps: gwcs @ git+https://github.com/spacetelescope/gwcs.git
 use_develop = true
 pass_env =
     CI