diff --git a/roles/docker/tests/inventory b/roles/docker/tests/inventory
deleted file mode 100644
index 878877b..0000000
--- a/roles/docker/tests/inventory
+++ /dev/null
@@ -1,2 +0,0 @@
-localhost
-
diff --git a/roles/docker/tests/test.yml b/roles/docker/tests/test.yml
deleted file mode 100644
index 7aabdb0..0000000
--- a/roles/docker/tests/test.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-- hosts: localhost
-  remote_user: root
-  roles:
-    - docker
diff --git a/roles/wireguard/tasks/firewall.yml b/roles/wireguard/tasks/firewall.yml
index bb3043c..dbc906b 100644
--- a/roles/wireguard/tasks/firewall.yml
+++ b/roles/wireguard/tasks/firewall.yml
@@ -17,7 +17,7 @@
 
 
 - name: Setup ipv4 IP forward
-  ansible.posix.sysctl:
+  sysctl:
     name: net.ipv4.ip_forward
     value: '1'
     sysctl_set: true
diff --git a/roles/wireguard/vars/main.yml b/roles/wireguard/vars/main.yml
index a776b8f..20d4972 100644
--- a/roles/wireguard/vars/main.yml
+++ b/roles/wireguard/vars/main.yml
@@ -1,6 +1,6 @@
 ---
 # vars file for wireguard
 _wireguard_interface_addr: "{{ ansible_default_ipv4.address | default(ansible_all_ipv4_addresses[0]) }}/{{ ansible_default_ipv4.netmask }}"
-wireguard_server_ip: "{{ wireguard_address | ansible.utils.ipaddr('network') | ansible.utils.ipmath(1) }}"
-wireguard_subnetmask: "{{ wireguard_address | ansible.utils.ipaddr('prefix') }}"
-wireguard_peers_allowed_ips: "{{ ([(_wireguard_interface_addr | ansible.utils.ipaddr('network/prefix'))] + (wireguard_additional_routes | default([]))) | join(\", \") }}"
\ No newline at end of file
+wireguard_server_ip: "{{ wireguard_address | ipaddr('network') | ipmath(1) }}"
+wireguard_subnetmask: "{{ wireguard_address | ipaddr('prefix') }}"
+wireguard_peers_allowed_ips: "{{ ([(_wireguard_interface_addr | ipaddr('network/prefix'))] + (wireguard_additional_routes | default([]))) | join(\", \") }}"
\ No newline at end of file