diff --git a/08_dimensionality_reduction.ipynb b/08_dimensionality_reduction.ipynb
index 30500f5b..6bd6b030 100644
--- a/08_dimensionality_reduction.ipynb
+++ b/08_dimensionality_reduction.ipynb
@@ -2209,7 +2209,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "That's nicer! Now let's focus on just the 3s and the 5s:"
+    "That's nicer! Now let's focus on just the 4s and the 9s:"
    ]
   },
   {