diff --git a/README b/README
index 3741f5e1..aa113cfc 100644
--- a/README
+++ b/README
@@ -59,8 +59,8 @@ ryandewhurst at gmail
 
   -> Installing on Archlinux:
 
-    pacman -Sy ruby
-    pacman -Sy libyaml
+    pacman -Syu ruby
+    pacman -Syu libyaml
 
     git clone https://github.com/wpscanteam/wpscan.git
     cd wpscan
diff --git a/README.md b/README.md
index cc53af5f..f84ac256 100644
--- a/README.md
+++ b/README.md
@@ -58,9 +58,9 @@ Prerequisites:
 
 *Installing on Archlinux:*
 
-```pacman -Sy ruby```
+```pacman -Syu ruby```
 
-```pacman -Sy libyaml```
+```pacman -Syu libyaml```
 
 ```git clone https://github.com/wpscanteam/wpscan.git```