diff --git a/04_mnist_basics.ipynb b/04_mnist_basics.ipynb
index 1048445..ec6578e 100644
--- a/04_mnist_basics.ipynb
+++ b/04_mnist_basics.ipynb
@@ -3164,7 +3164,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "We can use these gradients to improve our parameters. We'll need to pick a learning rate (we'll discuss how to do that in practice in the next chapter; for now we'll just pick `1.0`):"
+    "We can use these gradients to improve our parameters. We'll need to pick a learning rate (we'll discuss how to do that in practice in the next chapter; for now we'll just pick `1e-5`(0.00001)):"
    ]
   },
   {