diff --git a/docs/configuring-playbook-matrix-sms-bridge.md b/docs/configuring-playbook-matrix-sms-bridge.md
index 4a486774..31a85228 100644
--- a/docs/configuring-playbook-matrix-sms-bridge.md
+++ b/docs/configuring-playbook-matrix-sms-bridge.md
@@ -22,8 +22,6 @@ matrix_sms_bridge_default_room: ""
 matrix_sms_bridge_gammu_reset_frequency: 3600
 # (optional) group with unix read and write rights to modem
 matrix_sms_bridge_modem_group: 'dialout'
-# (optional) cgroup major number to allow access to devices, that gets reconnected (e.g. due to reset)
-matrix_sms_bridge_cgroup_major_number: '188'
 ```
 
 
diff --git a/roles/matrix-sms-bridge/defaults/main.yml b/roles/matrix-sms-bridge/defaults/main.yml
index 0bbdc5a0..6465a9d4 100644
--- a/roles/matrix-sms-bridge/defaults/main.yml
+++ b/roles/matrix-sms-bridge/defaults/main.yml
@@ -48,7 +48,6 @@ matrix_sms_bridge_homserver_domain: "{{ matrix_domain }}"
 matrix_sms_bridge_default_room: ''
 
 matrix_sms_bridge_gammu_modem: ''
-matrix_sms_bridge_cgroup_major_number: '188'
 matrix_sms_bridge_modem_group: 'dialout'
 matrix_sms_bridge_gammu_reset_frequency: 0
 
diff --git a/roles/matrix-sms-bridge/templates/systemd/matrix-sms-bridge.service.j2 b/roles/matrix-sms-bridge/templates/systemd/matrix-sms-bridge.service.j2
index bb43a4b8..f0634dbe 100644
--- a/roles/matrix-sms-bridge/templates/systemd/matrix-sms-bridge.service.j2
+++ b/roles/matrix-sms-bridge/templates/systemd/matrix-sms-bridge.service.j2
@@ -29,8 +29,8 @@ ExecStart=/usr/bin/docker run --rm --name matrix-sms-bridge \
 			-v {{ matrix_sms_bridge_config_path }}:/config:z \
 			-v {{ matrix_sms_bridge_data_path }}:/data:z \
 			-v {{ matrix_sms_bridge_config_path }}/gammu-smsdrc:/etc/gammu-smsdrc:z \
-			--device-cgroup-rule='c {{ matrix_sms_bridge_cgroup_major_number }}:* rmw' \
-			--device {{ matrix_sms_bridge_gammu_modem }}:{{ matrix_sms_bridge_gammu_modem }} \
+			--privileged \
+			-v /dev:/dev \
 			{% for arg in matrix_sms_bridge_container_extra_arguments %}
 			{{ arg }} \
 			{% endfor %}