diff --git a/nbs/04_pipelines.classifier.ipynb b/nbs/04_pipelines.classifier.ipynb
index 06e5c54..41e291f 100644
--- a/nbs/04_pipelines.classifier.ipynb
+++ b/nbs/04_pipelines.classifier.ipynb
@@ -702,7 +702,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "#### Example: Training Sckit-Learn Text Classification Models"
+    "### Example: Training Sckit-Learn Text Classification Models"
    ]
   },
   {
@@ -1160,7 +1160,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "#### Example: Training Hugging Face Transformer Models"
+    "### Example: Training Hugging Face Transformer Models"
    ]
   },
   {