diff --git a/pyproject.toml b/pyproject.toml
index 76f4377..453dc95 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -83,7 +83,10 @@ avaframe = { path = "../AvaFrame", editable = true }
 # which cannot satisfy debrisframe's published avaframe>=2.2b1 pin. Relax the
 # constraint for local development; the published metadata keeps the pin.
 [tool.pixi.feature.dev.pypi-options.dependency-overrides]
-avaframe = ">=2.1"
+avaframe = ">2.1"
+
+[tool.pixi.feature.dev.pypi-options]
+prerelease-mode = "allow"
 
 # Environments
 [tool.pixi.environments]