diff --git a/tutorials/01-DataJoint Basics.ipynb b/tutorials/01-DataJoint Basics.ipynb
index 747efcc..bd2b69b 100644
--- a/tutorials/01-DataJoint Basics.ipynb	
+++ b/tutorials/01-DataJoint Basics.ipynb	
@@ -380,7 +380,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "##### Insert operators"
+    "#### Insert operators"
    ]
   },
   {