diff --git a/serket/nn/convolution.py b/serket/nn/convolution.py
index aa1e200..d2b20cc 100644
--- a/serket/nn/convolution.py
+++ b/serket/nn/convolution.py
@@ -282,7 +282,6 @@ class Conv1D(ConvND):
         groups: number of groups to use for grouped convolution.
         key: key to use for initializing the weights. defaults to ``jax.random.PRNGKey(0)``.
         dtype: dtype of the weights. defaults to ``jax.numpy.float32``
-        dtype: dtype to use for the weights and bias. defaults to ``jnp.float32``.
 
     Example:
         >>> import jax.numpy as jnp