diff --git a/bin/upgrade.elv b/bin/upgrade.elv
new file mode 100755
index 0000000..b23369e
--- /dev/null
+++ b/bin/upgrade.elv
@@ -0,0 +1,4 @@
+find . | grep "tm$" | each { |x|
+  /usr/bin/MoganResearch --convert $x $"x"u --quit
+}
+
diff --git a/bin/upgrade.sh b/bin/upgrade.sh
deleted file mode 100755
index 3c0e2c3..0000000
--- a/bin/upgrade.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-for f in `find . | grep tm$`
-do
-  mogan --convert $f $f --quit
-done