diff --git a/ganga/GangaCore/Lib/Batch/BatchScriptTemplate.py.template b/ganga/GangaCore/Lib/Batch/BatchScriptTemplate.py.template
index 274e6f5cbe..3475e53fea 100644
--- a/ganga/GangaCore/Lib/Batch/BatchScriptTemplate.py.template
+++ b/ganga/GangaCore/Lib/Batch/BatchScriptTemplate.py.template
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 from __future__ import print_function
 
 import glob
diff --git a/ganga/GangaCore/Lib/Notebook/Notebook.py b/ganga/GangaCore/Lib/Notebook/Notebook.py
index e9b0b70121..e9b8f4a5b9 100755
--- a/ganga/GangaCore/Lib/Notebook/Notebook.py
+++ b/ganga/GangaCore/Lib/Notebook/Notebook.py
@@ -64,7 +64,7 @@ class Notebook(IPrepareApp):
             ),
             'kernel': SimpleItem(
                 preparable=1,
-                defvalue='python2',
+                defvalue='python3',
                 doc="The kernel to use for the notebook execution. \
                 Depending on configuration, python3, Root and R might be available.",
             ),
diff --git a/ganga/GangaCore/test/GPI/Notebook/Test.ipynb b/ganga/GangaCore/test/GPI/Notebook/Test.ipynb
index c7340d7848..433841e48a 100644
--- a/ganga/GangaCore/test/GPI/Notebook/Test.ipynb
+++ b/ganga/GangaCore/test/GPI/Notebook/Test.ipynb
@@ -28,7 +28,7 @@
   "kernelspec": {
    "display_name": "Python 2",
    "language": "python",
-   "name": "python2"
+   "name": "python3"
   },
   "language_info": {
    "codemirror_mode": {
@@ -39,7 +39,7 @@
    "mimetype": "text/x-python",
    "name": "python",
    "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython2",
+   "pygments_lexer": "ipython3",
    "version": "2.7.12"
   }
  },