diff --git a/src/js/game/hub_goals.js b/src/js/game/hub_goals.js
index 55eadc8e..3ce607fa 100644
--- a/src/js/game/hub_goals.js
+++ b/src/js/game/hub_goals.js
@@ -287,7 +287,6 @@ export class HubGoals extends BasicSerializableObject {
      * @param {string} upgradeId
      */
     canUnlockUpgrade(upgradeId) {
-        return true;
         const tiers = this.root.gameMode.getUpgrades()[upgradeId];
         const currentLevel = this.getUpgradeLevel(upgradeId);