diff --git a/pyproject.toml b/pyproject.toml
index 0624c00d9..b90fcb851 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ dependencies = [
     "pyparsing >=2.4.7",
     "requests >=2.26",
     # "rad>=0.21.0,<0.22.0",
-    "rad @ git+https://github.com/spacetelescope/rad.git",
+    "rad @ git+https://github.com/schlafly/rad.git@remove-var-flat",
     # "roman_datamodels>=0.21.0,<0.22.0",
     "roman_datamodels @ git+https://github.com/spacetelescope/roman_datamodels.git",
     "scipy >=1.11",