diff --git a/scripts/elixir-ls-setup.sh b/scripts/elixir-ls-setup.sh
index 9da234c..2c8dd56 100755
--- a/scripts/elixir-ls-setup.sh
+++ b/scripts/elixir-ls-setup.sh
@@ -10,6 +10,14 @@ function setup() {
 	git checkout tags/${1}
 	echo "set erlang/elixir versions"
 	cp .release-tool-versions .tool-versions
+	if [[ ! -z "$2" ]]; then
+		echo "override erlang to ${2}"
+		sed -i "s/erlang .*/erlang ${2}/g" .tool-versions
+	fi
+	if [[ ! -z "$3" ]]; then
+		echo "override elixir to ${3}"
+		sed -i "s/elixir .*/elixir ${3}/g" .tool-versions
+	fi
 	local current_erlang=$(mise current erlang)
 	local current_elixir=$(mise current elixir)
 	echo "using erlang ${current_erlang} / elixir ${current_elixir}"
@@ -27,4 +35,4 @@ function setup() {
 	git checkout master
 }
 
-setup $1
+setup $1 $2 $3