diff --git a/Makefile b/Makefile
index b4ac000..bdfd0c0 100644
--- a/Makefile
+++ b/Makefile
@@ -4,13 +4,21 @@ PKGNAME := netcup-dns
 all: install
 
 .PHONY: install
-install: notify cron
+install: nc-dnsapi requests notify cron
 	sudo python3 -m pip install --upgrade --force-reinstall .
 	sudo install -m0644 cron.d/$(PKGNAME) /etc/cron.d/$(PKGNAME)
 
 	sudo install --directory -m755 /etc/$(PKGNAME)/
 	sudo install -m0644 cfg/* /etc/$(PKGNAME)/
 
+.PHONY: nc-dnsapi  ## Check if nc-dnsapi is installed.
+nc-dnsapi:
+	pip list | cut -f 1 -d ' ' | grep '^nc-dnsapi$$' || sudo pacman -S --needed python-nc-dnsapi
+
+.PHONY: requests  ## Check if requests is installed.
+requests:
+	pip list | cut -f 1 -d ' ' | grep '^requests$$' || sudo pacman -S --needed python-requests
+
 .PHONY: notify  ## Check if execNotify is installed.
 notify:
 	# `type` does not work e.g. on Ubuntu 18.04
@@ -26,4 +34,4 @@ cron:
 .PHONY: clean
 clean:
 	sudo python3 -m pip uninstall -y $(PKGNAME)
-	rm -rf /etc/cron.d/$(PKGNAME) /etc/$(PKGNAME)
+	sudo rm -rf /etc/cron.d/$(PKGNAME) /etc/$(PKGNAME)