diff --git a/tasks/initjailusers.yml b/tasks/initjailusers.yml
index 9f1abc6abe643094dfab56f747d7d14c2fee0d96..355246b9ddb51a24cb73b2567b2176bfe3081c46 100644
--- a/tasks/initjailusers.yml
+++ b/tasks/initjailusers.yml
@@ -11,7 +11,7 @@
 - name: Copy user home directory into jails
   shell: jk_cp -j {{ jailroot }}/{{ item.0.jail.name }} -o -s -f /home/{{ username }}/{{ item.1 }}
   with_nested:
-    - {{ drupal_settings|default([]) }}
+    - '{{( drupal_settings|default([]) }})'
     - ['.bashrc',
        '.config',
        '.git-prompt.sh',
diff --git a/tasks/jailkit.yml b/tasks/jailkit.yml
index a8db6cb06f72a5e1530d706034b8780ed0a94232..59a40268380e4c27eac493e53835ef6138b2effa 100644
--- a/tasks/jailkit.yml
+++ b/tasks/jailkit.yml
@@ -16,8 +16,8 @@
     recurse: yes
     follow: no
   with_flattened:
-    - {{ admins }}
-    - {{ jailusers }}
+    - '{{( admins }})'
+    - '{{( jailusers }})'
 
 - name: Check JailKit Requirement
   shell: ls /usr/sbin/jk_init
@@ -159,8 +159,8 @@
     group: root
     mode: 0755
   with_flattened:
-    - {{ admins }}
-    - {{ jailusers }}
+    - '{{( admins }})'
+    - '{{( jailusers }})'
   loop_control:
     loop_var: username
   when: username != tunnel_user_name
@@ -172,8 +172,8 @@
 - name: Init Users
   include_tasks: initjailusers.yml
   with_flattened:
-    - {{ admins }}
-    - {{ jailusers }}
+    - '{{( admins }})'
+    - '{{( jailusers }})'
   loop_control:
     loop_var: username
   when: username != tunnel_user_name and jailuser_init
diff --git a/tasks/updatejail.yml b/tasks/updatejail.yml
index f787c426aa21b6896462437190333baedab46356..6efcbf50181bbcc0b5ca4bc967a552d95a75f90b 100644
--- a/tasks/updatejail.yml
+++ b/tasks/updatejail.yml
@@ -18,8 +18,8 @@
       recurse: yes
       follow: no
     with_flattened:
-      - {{ admins }}
-      - {{ jailusers }}
+      - '{{( admins }})'
+      - '{{( jailusers }})'
 
   - name: Set shell for crontabs
     cron:
diff --git a/templates/jail b/templates/jail
index 76c67fe97002c17d8eac3ce48d7cdd840ac5067a..ab09988e05da9706d6c0cf1c58cc3adf6e2d899f 100644
--- a/templates/jail
+++ b/templates/jail
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import os
 import argparse