diff --git a/bin/build.sh b/bin/build.sh
index 1739962..5733011 100644
--- a/bin/build.sh
+++ b/bin/build.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 echo "You're about to install ethereum. Please choose one of the following:"
 echo "1. eth"
diff --git a/bin/update.sh b/bin/update.sh
new file mode 100644
index 0000000..c44ff33
--- /dev/null
+++ b/bin/update.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+if [[ -f /usr/bin/geth ]];
+then
+	ethtype="geth"
+else
+	ethtype="eth"
+fi
+
+pm2 kill
+sudo apt-get remove $eth -y
+
+sudo apt-get clean
+sudo add-apt-repository -y ppa:ethereum/ethereum
+sudo add-apt-repository -y ppa:ethereum/ethereum-dev
+sudo apt-get update -y
+sudo apt-get upgrade -y
+
+sudo apt-get install $eth
+
+cd ~/bin/www
+git pull
+sudo npm update
+cd ..
+pm2 start processes.json