diff --git a/apps/api/src/app/account/create-account.dto.ts b/apps/api/src/app/account/create-account.dto.ts
index a6e07ad82..b719c2619 100644
--- a/apps/api/src/app/account/create-account.dto.ts
+++ b/apps/api/src/app/account/create-account.dto.ts
@@ -1,6 +1,7 @@
 import { Transform, TransformFnParams } from 'class-transformer';
 import {
   IsBoolean,
+  IsISO4217CurrencyCode,
   IsNumber,
   IsOptional,
   IsString,
@@ -19,7 +20,7 @@ export class CreateAccountDto {
   )
   comment?: string;
 
-  @IsString()
+  @IsISO4217CurrencyCode()
   currency: string;
 
   @IsOptional()
diff --git a/apps/api/src/app/account/update-account.dto.ts b/apps/api/src/app/account/update-account.dto.ts
index 16d55386d..1b84a9bf6 100644
--- a/apps/api/src/app/account/update-account.dto.ts
+++ b/apps/api/src/app/account/update-account.dto.ts
@@ -1,6 +1,7 @@
 import { Transform, TransformFnParams } from 'class-transformer';
 import {
   IsBoolean,
+  IsISO4217CurrencyCode,
   IsNumber,
   IsOptional,
   IsString,
@@ -19,7 +20,7 @@ export class UpdateAccountDto {
   )
   comment?: string;
 
-  @IsString()
+  @IsISO4217CurrencyCode()
   currency: string;
 
   @IsString()
diff --git a/apps/api/src/app/admin/update-asset-profile.dto.ts b/apps/api/src/app/admin/update-asset-profile.dto.ts
index 624acff9f..4a0457194 100644
--- a/apps/api/src/app/admin/update-asset-profile.dto.ts
+++ b/apps/api/src/app/admin/update-asset-profile.dto.ts
@@ -2,6 +2,7 @@ import { AssetClass, AssetSubClass, Prisma } from '@prisma/client';
 import {
   IsArray,
   IsEnum,
+  IsISO4217CurrencyCode,
   IsObject,
   IsOptional,
   IsString
@@ -24,7 +25,7 @@ export class UpdateAssetProfileDto {
   @IsOptional()
   countries?: Prisma.InputJsonArray;
 
-  @IsString()
+  @IsISO4217CurrencyCode()
   @IsOptional()
   currency?: string;
 
diff --git a/apps/api/src/app/order/create-order.dto.ts b/apps/api/src/app/order/create-order.dto.ts
index f25a7ee12..aecec842a 100644
--- a/apps/api/src/app/order/create-order.dto.ts
+++ b/apps/api/src/app/order/create-order.dto.ts
@@ -10,6 +10,7 @@ import {
   IsArray,
   IsBoolean,
   IsEnum,
+  IsISO4217CurrencyCode,
   IsISO8601,
   IsNumber,
   IsOptional,
@@ -38,7 +39,7 @@ export class CreateOrderDto {
   )
   comment?: string;
 
-  @IsString()
+  @IsISO4217CurrencyCode()
   currency: string;
 
   @IsOptional()
diff --git a/apps/api/src/app/order/update-order.dto.ts b/apps/api/src/app/order/update-order.dto.ts
index 3123d5665..c0a400c57 100644
--- a/apps/api/src/app/order/update-order.dto.ts
+++ b/apps/api/src/app/order/update-order.dto.ts
@@ -9,6 +9,7 @@ import { Transform, TransformFnParams } from 'class-transformer';
 import {
   IsArray,
   IsEnum,
+  IsISO4217CurrencyCode,
   IsISO8601,
   IsNumber,
   IsOptional,
@@ -37,7 +38,7 @@ export class UpdateOrderDto {
   )
   comment?: string;
 
-  @IsString()
+  @IsISO4217CurrencyCode()
   currency: string;
 
   @IsString()
diff --git a/apps/api/src/app/user/update-user-setting.dto.ts b/apps/api/src/app/user/update-user-setting.dto.ts
index 317a31527..7b09ced10 100644
--- a/apps/api/src/app/user/update-user-setting.dto.ts
+++ b/apps/api/src/app/user/update-user-setting.dto.ts
@@ -7,6 +7,7 @@ import type {
 import {
   IsArray,
   IsBoolean,
+  IsISO4217CurrencyCode,
   IsISO8601,
   IsIn,
   IsNumber,
@@ -19,8 +20,8 @@ export class UpdateUserSettingDto {
   @IsOptional()
   annualInterestRate?: number;
 
+  @IsISO4217CurrencyCode()
   @IsOptional()
-  @IsString()
   baseCurrency?: string;
 
   @IsString()