diff --git a/mpt b/mpt
index c2f6ee6..93c40be 100644
--- a/mpt
+++ b/mpt
@@ -1,5 +1,5 @@
 #!/bin/sh
-cd "$(dirname "$0")"
+cd "$(dirname "$0")" || exit
 case $1 in
 install)
   if ! [ -d "$HOME/.mpt" ];
@@ -12,6 +12,16 @@ install)
     curl $dl --output $HOME/.mpt/mpt.jar
   fi
   ;;
+update)
+  dl=$(curl https://data.tilera.xyz/file/mpt/mpt-latest)
+  echo Downloading $dl ...
+  if [ -f "$HOME/.mpt/mpt.jar" ]
+  then
+    curl $dl --output $HOME/.mpt/mpt.jar
+  else
+    curl $dl --output .mpt/mpt.jar
+  fi
+  ;;
 *)
   if ! [ -d ".mpt" ];
   then mkdir .mpt