diff --git a/install-dat-release.sh b/install-dat-release.sh
index 292b6a2..28e389e 100644
--- a/install-dat-release.sh
+++ b/install-dat-release.sh
@@ -65,7 +65,7 @@ download_geosite() {
 
 rename_new() {
     for DAT in 'geoip' 'geosite'; do
-        install "${V2RAY}$DAT.dat.new" "${V2RAY}$DAT.dat"
+        install -m 644 "${V2RAY}$DAT.dat.new" "${V2RAY}$DAT.dat"
         rm "${V2RAY}$DAT.dat.new"
         rm "${V2RAY}$DAT.dat.sha256sum.new"
     done
diff --git a/install-release.sh b/install-release.sh
index 1ec8818..5fd5dbf 100644
--- a/install-release.sh
+++ b/install-release.sh
@@ -330,7 +330,7 @@ install_file() {
     if [[ "$NAME" == 'v2ray' ]] || [[ "$NAME" == 'v2ctl' ]]; then
         install -m 755 "${TMP_DIRECTORY}$NAME" "/usr/local/bin/$NAME"
     elif [[ "$NAME" == 'geoip.dat' ]] || [[ "$NAME" == 'geosite.dat' ]]; then
-        install "${TMP_DIRECTORY}$NAME" "/usr/local/lib/v2ray/$NAME"
+        install -m 644 "${TMP_DIRECTORY}$NAME" "/usr/local/lib/v2ray/$NAME"
     fi
 }
 
@@ -376,8 +376,8 @@ install_startup_service_file() {
             echo 'error: Failed to start service file download! Please check your network or try again.'
             exit 1
         fi
-        install "${TMP_DIRECTORY}systemd/system/v2ray.service" /etc/systemd/system/v2ray.service
-        install "${TMP_DIRECTORY}systemd/system/v2ray@.service" /etc/systemd/system/v2ray@.service
+        install -m 644 "${TMP_DIRECTORY}systemd/system/v2ray.service" /etc/systemd/system/v2ray.service
+        install -m 644 "${TMP_DIRECTORY}systemd/system/v2ray@.service" /etc/systemd/system/v2ray@.service
         SYSTEMD='1'
     fi
 }