diff --git a/msspecbook/Activity07/Activity07.ipynb b/msspecbook/Activity07/Activity07.ipynb
index 1e99041..29d05a8 100644
--- a/msspecbook/Activity07/Activity07.ipynb
+++ b/msspecbook/Activity07/Activity07.ipynb
@@ -187,7 +187,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.13"
+   "version": "3.11.3"
   }
  },
  "nbformat": 4,
diff --git a/msspecbook/Activity08/Activity08.ipynb b/msspecbook/Activity08/Activity08.ipynb
index a130ae0..658c800 100644
--- a/msspecbook/Activity08/Activity08.ipynb
+++ b/msspecbook/Activity08/Activity08.ipynb
@@ -143,7 +143,7 @@
     "\n",
     ":::{literalinclude} AlN_completed.py\n",
     ":lineno-match:\n",
-    ":emphasize-lines: 1\n",
+    ":emphasize-lines: 8,31-34,60,61,63,64,66,68,69,71\n",
     ":::\n",
     "\n",
     "```"
@@ -166,7 +166,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.13"
+   "version": "3.11.3"
   }
  },
  "nbformat": 4,
diff --git a/msspecbook/Activity08/AlN.py b/msspecbook/Activity08/AlN.py
index b424f72..bf2bd08 100644
--- a/msspecbook/Activity08/AlN.py
+++ b/msspecbook/Activity08/AlN.py
@@ -1,7 +1,3 @@
-#!/usr/bin/env python
-# coding: utf8
-
-
 from ase.build import bulk
 import numpy as np
 from msspec.calculator import MSSPEC, XRaySource
diff --git a/msspecbook/Activity08/AlN_completed.py b/msspecbook/Activity08/AlN_completed.py
index 5e9951c..ed30b82 100644
--- a/msspecbook/Activity08/AlN_completed.py
+++ b/msspecbook/Activity08/AlN_completed.py
@@ -1,6 +1,3 @@
-#!/usr/bin/env python
-# coding: utf8
-
 from ase.build import bulk
 import numpy as np
 from msspec.calculator import MSSPEC, XRaySource