diff --git a/zapret/Makefile b/zapret/Makefile
index 584ff4f..e4012bf 100644
--- a/zapret/Makefile
+++ b/zapret/Makefile
@@ -37,7 +37,7 @@ define Package/$(PKG_NAME)
 	DEPENDS:= +nftables +curl +gzip
 	DEPENDS+= +coreutils +coreutils-sort +coreutils-sleep
 	DEPENDS+= +kmod-nft-nat +kmod-nft-offload +kmod-nft-queue
-	DEPENDS+= +libnetfilter-queue +libcap +zlib
+	DEPENDS+= +libnetfilter-queue +libmnl +libcap +zlib
 endef
 
 define Build/Prepare
@@ -180,7 +180,7 @@ if [ -z "$${IPKG_INSTROOT}" ]; then
 			$${ZAPRET_INITD} running && $${ZAPRET_INITD} stop >/dev/null 2>&1
 		fi
 	fi
-	if $${PKG_CHECK} zapret >/dev/null 2>&1; then
+	if $${PKG_CHECK} zapret 2>/dev/null | grep -q . ; then
 		if [ ! -f "/opt/zapret/sync_config.sh" ]; then
 			echo "Please uninstall incompatible \"zapret\" package!"
 			exit 47
@@ -190,7 +190,7 @@ if [ -z "$${IPKG_INSTROOT}" ]; then
 			exit 48
 		fi
 	fi
-	if $${PKG_CHECK} luci-app-zapret >/dev/null 2>&1; then
+	if $${PKG_CHECK} luci-app-zapret 2>/dev/null | grep -q . ; then
 		SVC_FILE=/www/luci-static/resources/view/zapret/service.js
 		if [ ! -f "$${SVC_FILE}" ] || ! grep -Fq "/remittor/zapret-openwrt" "$${SVC_FILE}"; then
 			echo "Please uninstall incompatible \"luci-app-zapret\" package!"
@@ -206,10 +206,10 @@ if [ -z "$${IPKG_INSTROOT}" ]; then
 		[ -d "$${ZAPRET_DIR}" ] && rm -rf $${ZAPRET_DIR}
 		echo "All files of the previously installed package have been removed!"
 	fi
-	if $${PKG_CHECK} zapret-mdig >/dev/null 2>&1; then
+	if $${PKG_CHECK} zapret-mdig 2>/dev/null | grep -q . ; then
 		$${PKG_REMOVE} zapret-mdig
 	fi
-	if $${PKG_CHECK} zapret-ip2net >/dev/null 2>&1; then
+	if $${PKG_CHECK} zapret-ip2net 2>/dev/null | grep -q . ; then
 		$${PKG_REMOVE} zapret-ip2net
 	fi
 	if [ ! -d "$${ZAPRET_DIR}" ]; then
diff --git a/zapret/update-pkg.sh b/zapret/update-pkg.sh
index 45e107b..f45e207 100755
--- a/zapret/update-pkg.sh
+++ b/zapret/update-pkg.sh
@@ -89,6 +89,16 @@ fi
 
 # -------------------------------------------------------------------------------------------------------
 
+function check_pkg_installed
+{
+	local pkg_name="$1"
+	if [ "$PKG_MGR" = apk ]; then
+		apk info -e "$pkg_name" >/dev/null 2>&1; 
+	else
+		opkg status "$pkg_name" 2>/dev/null | grep -q .
+	fi
+}
+
 function get_distrib_param
 {
 	local parname=$1
@@ -475,7 +485,7 @@ if [ "$opt_update" != "" ]; then
 	mkdir $ZAP_PKG_DIR
 	ZAP_PKG_FN="$ZAP_PKG_DIR/${ZAP_PKG_URL##*/}"
 	echo "Download ZIP-file..."
-	curl -s -L --max-time 15 -H "$CURL_HEADER2" "$ZAP_PKG_URL" -o "$ZAP_PKG_FN"
+	curl -s -L --max-time 35 -H "$CURL_HEADER2" "$ZAP_PKG_URL" -o "$ZAP_PKG_FN"
 	if [ $? -ne 0 ]; then
 		echo "ERROR: cannot download package!"
 		return 215
@@ -529,11 +539,11 @@ if [ "$opt_update" != "" ]; then
 	if [ "$opt_forced" = true ]; then
 		pkg_mgr_update
 	fi
-	if ${PKG_CHECK} ${ZAPRET_CFG_NAME}-mdig >/dev/null 2>&1; then
+	if check_pkg_installed ${ZAPRET_CFG_NAME}-mdig; then
 		echo "Uninstall mdig..."
 		${PKG_REMOVE} ${ZAPRET_CFG_NAME}-mdig
 	fi
-	if ${PKG_CHECK} ${ZAPRET_CFG_NAME}-ip2net >/dev/null 2>&1; then
+	if check_pkg_installed ${ZAPRET_CFG_NAME}-ip2net; then
 		echo "Uninstall ip2net..."
 		${PKG_REMOVE} ${ZAPRET_CFG_NAME}-ip2net
 	fi