diff --git a/docs/deployment-on-pythonanywhere.rst b/docs/deployment-on-pythonanywhere.rst
index 82399eb15..b99633a3c 100644
--- a/docs/deployment-on-pythonanywhere.rst
+++ b/docs/deployment-on-pythonanywhere.rst
@@ -47,7 +47,7 @@ Generate a secret key for yourself, eg like this:
 
 .. code-block:: bash
 
-    python -c 'import random; print("".join(random.SystemRandom().choice("abcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*(-_=+)") for _ in range(50)))'
+    python -c 'import random; print("".join(random.SystemRandom().choice(string.digits + string.ascii_letters + string.punctuation) for _ in range(50)))'
 
 Make a note of it, since we'll need it here in the console and later on in the web app config tab.