diff --git a/openvpn-install.sh b/openvpn-install.sh
index 815031e..4235723 100644
--- a/openvpn-install.sh
+++ b/openvpn-install.sh
@@ -223,7 +223,7 @@ LimitNPROC=infinity" > /etc/systemd/system/openvpn-server@server.service.d/disab
 	fi
 	if [[ "$os" = "debian" || "$os" = "ubuntu" ]]; then
 		apt-get update
-		apt-get install -y openvpn openssl ca-certificates $firewall
+		apt-get install -y --no-install-recommends openvpn openssl ca-certificates $firewall
 	elif [[ "$os" = "centos" ]]; then
 		yum install -y epel-release
 		yum install -y openvpn openssl ca-certificates tar $firewall
@@ -236,17 +236,17 @@ LimitNPROC=infinity" > /etc/systemd/system/openvpn-server@server.service.d/disab
 		systemctl enable --now firewalld.service
 	fi
 	# Get easy-rsa
-	easy_rsa_url='https://github.com/OpenVPN/easy-rsa/releases/download/v3.1.0/EasyRSA-3.1.0.tgz'
+	easy_rsa_url='https://github.com/OpenVPN/easy-rsa/releases/download/v3.1.1/EasyRSA-3.1.1.tgz'
 	mkdir -p /etc/openvpn/server/easy-rsa/
 	{ wget -qO- "$easy_rsa_url" 2>/dev/null || curl -sL "$easy_rsa_url" ; } | tar xz -C /etc/openvpn/server/easy-rsa/ --strip-components 1
 	chown -R root:root /etc/openvpn/server/easy-rsa/
 	cd /etc/openvpn/server/easy-rsa/
 	# Create the PKI, set up the CA and the server and client certificates
-	./easyrsa init-pki
+	./easyrsa --batch init-pki
 	./easyrsa --batch build-ca nopass
-	EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-server-full server nopass
-	EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
-	EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
+	./easyrsa --batch --days=3650 build-server-full server nopass
+	./easyrsa --batch --days=3650 build-client-full "$client" nopass
+	./easyrsa --batch --days=3650 gen-crl
 	# Move the stuff we need
 	cp pki/ca.crt pki/private/ca.key pki/issued/server.crt pki/private/server.key pki/crl.pem /etc/openvpn/server
 	# CRL is read with each client connection, while OpenVPN is dropped to nobody
@@ -461,7 +461,7 @@ else
 				client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
 			done
 			cd /etc/openvpn/server/easy-rsa/
-			EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
+			./easyrsa --batch --days=3650 build-client-full "$client" nopass
 			# Generates the custom client.ovpn
 			new_client
 			echo
@@ -495,7 +495,7 @@ else
 			if [[ "$revoke" =~ ^[yY]$ ]]; then
 				cd /etc/openvpn/server/easy-rsa/
 				./easyrsa --batch revoke "$client"
-				EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
+				./easyrsa --batch --days=3650 gen-crl
 				rm -f /etc/openvpn/server/crl.pem
 				cp /etc/openvpn/server/easy-rsa/pki/crl.pem /etc/openvpn/server/crl.pem
 				# CRL is read with each client connection, when OpenVPN is dropped to nobody