diff --git a/Makefile b/Makefile
index 67a3586..b7e2436 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,9 @@
+.PHONY: install-dev
+
 install-dev: composer.phar
 	./composer.phar install
 	ln --symbolic --no-dereference --force config-dev config
 
 composer.phar:
-	wget https://getcomposer.org/composer.phar
+	curl -sS https://getcomposer.org/installer | php -- --version=2.2.18 --install-dir=. --filename=composer.phar
 	chmod u+x composer.phar
diff --git a/config-dev/db-connection.php b/config-dev/db-connection.php
index 0ce1428..c5f32d8 100644
--- a/config-dev/db-connection.php
+++ b/config-dev/db-connection.php
@@ -1,3 +1,3 @@
 <?php
 
-return new PDO("mysql:host=localhost;dbname=sample", "sampleuser", "samplepass", [PDO::ATTR_PERSISTENT => true]);
+return new PDO("mysql:host=db;dbname=sample", "sampleuser", "samplepass", [PDO::ATTR_PERSISTENT => true]);