diff --git a/studio/backend/requirements/single-env/overrides-darwin-arm64.txt b/studio/backend/requirements/single-env/overrides-darwin-arm64.txt
index 2cd03d8b78..8558cd5b6c 100644
--- a/studio/backend/requirements/single-env/overrides-darwin-arm64.txt
+++ b/studio/backend/requirements/single-env/overrides-darwin-arm64.txt
@@ -3,3 +3,9 @@
 # backtrack unsloth. Relax to match the pin -- per-model 5.x routing
 # happens at runtime via the side-car venvs.
 transformers>=4.57.6
+
+# mlx-vlm / mlx-lm pull anyio>=4.14, which conflicts with the constraints.txt
+# cap (anyio<4.14.0, #6483: 4.14+ breaks cancel scope on Python 3.13). A -c
+# constraint loses that conflict on macOS-arm and 4.14.0 gets installed; an
+# override wins it, so force anyio down here too.
+anyio<4.14.0