diff --git a/TODO b/TODO
index 17c417a..1a332ab 100644
--- a/TODO
+++ b/TODO
@@ -1,5 +1,6 @@
 * Allow to cancel last moves
 * Effect should be random in a range (eg. "damage target 50-75")
+* Add an overload/cooling system
 * Add auto-move to attack
 * Add equipment info (or summary) in ship tooltip
 * Escape key should cancel selected action
diff --git a/npm b/npm
index f4d7b9f..3fe56d9 100755
--- a/npm
+++ b/npm
@@ -9,6 +9,6 @@ which python3 > /dev/null 2>&1 || ( npm "$@" && exit 0 )
 dir=$(dirname $0)
 
 test -x "${dir}/.env/bin/nodeenv" || ( virtualenv -p python3 "${dir}/.env" && "${dir}/.env/bin/pip" install --upgrade nodeenv )
-test -f "${dir}/.env/node/bin/activate" || "${dir}/.env/bin/nodeenv" --node=latest --force "${dir}/.env/node"
+test -f "${dir}/.env/node/bin/activate" || "${dir}/.env/bin/nodeenv" --node=6.9.5 --force "${dir}/.env/node"
 PATH="${dir}/.env/node/bin:${PATH}" npm "$@"
 
diff --git a/package.json b/package.json
index 53aedd0..8f8a37c 100644
--- a/package.json
+++ b/package.json
@@ -22,11 +22,11 @@
     "bower": "~1.8",
     "codecov": "~1.0",
     "jasmine": "~2.5",
-    "karma": "~1.3",
+    "karma": "~1.4",
     "karma-coverage": "~1.1",
     "karma-jasmine": "~1.1",
     "karma-phantomjs-launcher": "~1.0",
-    "remap-istanbul": "~0.6",
+    "remap-istanbul": "~0.8",
     "live-server": "~1.2",
     "typescript": "~2.1",
     "typings": "~1.4"