diff --git a/src/controllers/api/inventorySlotsController.ts b/src/controllers/api/inventorySlotsController.ts
index 0c95c89d..cb49ddb4 100644
--- a/src/controllers/api/inventorySlotsController.ts
+++ b/src/controllers/api/inventorySlotsController.ts
@@ -1,5 +1,5 @@
 import { getAccountIdForRequest } from "@/src/services/loginService";
-import { updateCurrencyByAccountId } from "@/src/services/inventoryService";
+import { getInventory, updateCurrency } from "@/src/services/inventoryService";
 import { RequestHandler } from "express";
 import { updateSlots } from "@/src/services/inventoryService";
 import { InventorySlot } from "@/src/types/inventoryTypes/inventoryTypes";
@@ -26,8 +26,10 @@ export const inventorySlotsController: RequestHandler = async (req, res) => {
 
     //TODO: check which slot was purchased because pvpBonus is also possible
 
-    const currencyChanges = await updateCurrencyByAccountId(20, true, accountId);
-    await updateSlots(accountId, InventorySlot.PVE_LOADOUTS, 1, 1);
+    const inventory = await getInventory(accountId);
+    const currencyChanges = updateCurrency(inventory, 20, true);
+    updateSlots(inventory, InventorySlot.PVE_LOADOUTS, 1, 1);
+    await inventory.save();
 
     //console.log({ InventoryChanges: currencyChanges }, " added loadout changes:");
 
diff --git a/src/services/inventoryService.ts b/src/services/inventoryService.ts
index d3320a58..f1c8e55c 100644
--- a/src/services/inventoryService.ts
+++ b/src/services/inventoryService.ts
@@ -215,8 +215,8 @@ export const addItem = async (
                 default: {
                     const inventory = await getInventory(accountId);
                     const inventoryChanges = addPowerSuit(inventory, typeName);
+                    updateSlots(inventory, InventorySlot.SUITS, 0, 1);
                     await inventory.save();
-                    await updateSlots(accountId, InventorySlot.SUITS, 0, 1);
                     return {
                         InventoryChanges: {
                             ...inventoryChanges,
@@ -231,8 +231,8 @@ export const addItem = async (
                 case "Archwing": {
                     const inventory = await getInventory(accountId);
                     const inventoryChanges = addSpaceSuit(inventory, typeName);
+                    updateSlots(inventory, InventorySlot.SPACESUITS, 0, 1);
                     await inventory.save();
-                    await updateSlots(accountId, InventorySlot.SPACESUITS, 0, 1);
                     return {
                         InventoryChanges: {
                             ...inventoryChanges,
@@ -247,8 +247,8 @@ export const addItem = async (
                 case "EntratiMech": {
                     const inventory = await getInventory(accountId);
                     const inventoryChanges = addMechSuit(inventory, typeName);
+                    updateSlots(inventory, InventorySlot.MECHSUITS, 0, 1);
                     await inventory.save();
-                    await updateSlots(accountId, InventorySlot.MECHSUITS, 0, 1);
                     return {
                         InventoryChanges: {
                             ...inventoryChanges,
@@ -266,8 +266,8 @@ export const addItem = async (
             const inventory = await getInventory(accountId);
             const weaponType = getWeaponType(typeName);
             const inventoryChanges = addEquipment(inventory, weaponType, typeName);
+            updateSlots(inventory, InventorySlot.WEAPONS, 0, 1);
             await inventory.save();
-            await updateSlots(accountId, InventorySlot.WEAPONS, 0, 1);
             return {
                 InventoryChanges: {
                     ...inventoryChanges,
@@ -297,8 +297,8 @@ export const addItem = async (
                 case "Sentinels": {
                     const inventory = await getInventory(accountId);
                     const inventoryChanges = addSentinel(inventory, typeName);
+                    updateSlots(inventory, InventorySlot.SENTINELS, 0, 1);
                     await inventory.save();
-                    await updateSlots(accountId, InventorySlot.SENTINELS, 0, 1);
                     return {
                         InventoryChanges: {
                             ...inventoryChanges,
@@ -485,22 +485,18 @@ export const addSpaceSuit = (
     return inventoryChanges;
 };
 
-export const updateSlots = async (
-    accountId: string,
+export const updateSlots = (
+    inventory: TInventoryDatabaseDocument,
     slotName: SlotNames,
     slotAmount: number,
     extraAmount: number
-): Promise<void> => {
-    const inventory = await getInventory(accountId);
-
+): void => {
     inventory[slotName].Slots += slotAmount;
     if (inventory[slotName].Extra === undefined) {
         inventory[slotName].Extra = extraAmount;
     } else {
         inventory[slotName].Extra += extraAmount;
     }
-
-    await inventory.save();
 };
 
 const isCurrencyTracked = (usePremium: boolean): boolean => {
diff --git a/src/services/purchaseService.ts b/src/services/purchaseService.ts
index 8496934d..346dc5df 100644
--- a/src/services/purchaseService.ts
+++ b/src/services/purchaseService.ts
@@ -248,7 +248,9 @@ const handleSlotPurchase = async (
     const slotName = slotPurchaseNameToSlotName[slotPurchaseName].name;
     const slotsPerPurchase = slotPurchaseNameToSlotName[slotPurchaseName].slotsPerPurchase;
 
-    await updateSlots(accountId, slotName, slotsPerPurchase, slotsPerPurchase);
+    const inventory = await getInventory(accountId);
+    updateSlots(inventory, slotName, slotsPerPurchase, slotsPerPurchase);
+    await inventory.save();
 
     logger.debug(`added ${slotsPerPurchase} slot ${slotName}`);