diff --git a/install.sh b/install.sh
index c566128..09ef46d 100755
--- a/install.sh
+++ b/install.sh
@@ -8,6 +8,9 @@ cp ./ping-vps.sh /usr/local/bin/ping-vps.sh
 chmod +x /usr/local/bin/ping-vps.sh
 cp ./ping-vps.service /etc/systemd/system/ping-vps.service
 cp ./ping-vps.timer /etc/systemd/system/ping-vps.timer
+mkdir -p /etc/ping-monitor
+cp ./.env /etc/ping-monitor/env
+chmod 600 /etc/ping-monitor/env
 systemctl daemon-reload
 systemctl enable --now ping-vps.timer
 systemctl list-timers
diff --git a/ping-vps.service b/ping-vps.service
index 96cb2c5..bf88160 100644
--- a/ping-vps.service
+++ b/ping-vps.service
@@ -4,4 +4,5 @@ Description=Ping vps
 
 [Service]
 Type=oneshot
+EnvironmentFile=/etc/ping-monitor/env
 ExecStart=/usr/local/bin/ping-vps.sh
diff --git a/ping-vps.sh b/ping-vps.sh
index 1586e8c..8de0fbe 100755
--- a/ping-vps.sh
+++ b/ping-vps.sh
@@ -1,6 +1,5 @@
 #!/bin/bash
 # /usr/local/bin/ping_monitor.sh
-source "$(dirname "$0")/.env"
 send_matrix() {
   curl -s -X PUT \
     "${MATRIX_SERVER}/_matrix/client/v3/rooms/${MATRIX_ROOM}/send/m.room.message/$(date +%s%N)" \