diff --git a/diffrax/_misc.py b/diffrax/_misc.py
index 5fe777b4..5a5a3b67 100644
--- a/diffrax/_misc.py
+++ b/diffrax/_misc.py
@@ -177,7 +177,7 @@ def upcast_or_raise(
     target_dtype = jnp.result_type(array_for_dtype)
     with jax.numpy_dtype_promotion("standard"):
         promote_dtype = jnp.result_type(x_dtype, target_dtype)
-    config_value = jax.config.jax_numpy_dtype_promotion
+    config_value = jax.config.jax_numpy_dtype_promotion  # pyright: ignore
     if config_value == "strict":
         if target_dtype != promote_dtype:
             raise ValueError(