diff --git a/buildroot-external/rootfs-overlay/etc/systemd/system/docker.service.d/hassos.conf b/buildroot-external/rootfs-overlay/etc/systemd/system/docker.service.d/hassos.conf
index 9efbc09f8..87fafd279 100644
--- a/buildroot-external/rootfs-overlay/etc/systemd/system/docker.service.d/hassos.conf
+++ b/buildroot-external/rootfs-overlay/etc/systemd/system/docker.service.d/hassos.conf
@@ -3,4 +3,4 @@ RequiresMountsFor=/etc/docker /mnt/data /var/lib/docker
 
 [Service]
 ExecStart=
-ExecStart=/usr/bin/dockerd -H fd:// --storage-driver=overlay2 --log-driver=journald --data-root /mnt/data/docker
+ExecStart=/usr/bin/dockerd -H fd:// --cpu-rt-runtime=950000 --storage-driver=overlay2 --log-driver=journald --data-root /mnt/data/docker
diff --git a/buildroot-external/rootfs-overlay/usr/sbin/hassos-supervisor b/buildroot-external/rootfs-overlay/usr/sbin/hassos-supervisor
index 81d1e4d2d..6f0ca429b 100755
--- a/buildroot-external/rootfs-overlay/usr/sbin/hassos-supervisor
+++ b/buildroot-external/rootfs-overlay/usr/sbin/hassos-supervisor
@@ -79,6 +79,7 @@ if [ -z "${SUPERVISOR_CONTAINER_ID}" ]; then
         -v /mnt/boot:/os/boot:rw \
         -e SUPERVISOR_SHARE=${SUPERVISOR_DATA} \
         -e SUPERVISOR_NAME=hassio_supervisor \
+        -e SUPERVISOR_CPU_RT=1 \
         -e SUPERVISOR_MACHINE=${SUPERVISOR_MACHINE} \
         "${SUPERVISOR_IMAGE}:latest"
 fi