diff --git a/README.rdoc b/README.rdoc
--- a/README.rdoc
+++ b/README.rdoc
@@ -51,9 +51,7 @@
 
 === 3. Install necessary package
 
-    cafe@grader:~$ sudo apt install libmysqlclient-dev default-jdk unzip nodejs php7.2-cli apache2 dirmngr gnupg apache2-dev
-
-curl build-essential
+    cafe@grader:~$ sudo apt install libmysqlclient-dev default-jdk unzip nodejs php-cli apache2 dirmngr gnupg apache2-dev
 
 === 4. Install cafe-grader