diff --git a/tfjs-converter/python/tensorflowjs/converters/jax_conversion.py b/tfjs-converter/python/tensorflowjs/converters/jax_conversion.py
index d9b1209ac07..ef7ca7bb194 100644
--- a/tfjs-converter/python/tensorflowjs/converters/jax_conversion.py
+++ b/tfjs-converter/python/tensorflowjs/converters/jax_conversion.py
@@ -17,7 +17,6 @@
 from typing import Any, Callable, Optional, Sequence, Tuple, Union
 
 from jax.experimental import jax2tf
-from jax.experimental.export import shape_poly
 import tensorflow as tf
 from tensorflowjs.converters import tf_saved_model_conversion_v2 as saved_model_conversion
 
@@ -25,7 +24,6 @@
 _TF_SERVING_KEY = tf.saved_model.DEFAULT_SERVING_SIGNATURE_DEF_KEY
 Array = Any
 DType = Any
-PolyShape = shape_poly.PolyShape
 
 
 class _ReusableSavedModelWrapper(tf.train.Checkpoint):
@@ -60,7 +58,7 @@ def convert_jax(
     *,
     input_signatures: Sequence[Tuple[Sequence[Union[int, None]], DType]],
     model_dir: str,
-    polymorphic_shapes: Optional[Sequence[Union[str, PolyShape]]] = None,
+    polymorphic_shapes: Optional[Sequence[str]] = None,
     **tfjs_converter_params):
   """Converts a JAX function `jax_apply_fn` and model parameters to a TensorflowJS model.