diff --git a/processor/package-lock.json b/processor/package-lock.json
index 234de975..826c9536 100644
--- a/processor/package-lock.json
+++ b/processor/package-lock.json
@@ -9,7 +9,7 @@
       "version": "5.14.0",
       "license": "ISC",
       "dependencies": {
-        "@adyen/api-library": "28.0.0",
+        "@adyen/api-library": "29.1.0",
         "@commercetools-backend/loggers": "24.7.2",
         "@commercetools/connect-payments-sdk": "0.24.0",
         "@fastify/autoload": "6.3.1",
@@ -56,10 +56,9 @@
       }
     },
     "node_modules/@adyen/api-library": {
-      "version": "28.0.0",
-      "resolved": "https://registry.npmjs.org/@adyen/api-library/-/api-library-28.0.0.tgz",
-      "integrity": "sha512-qgAa+WLrIkapJaXlqtJY9reHeoM4NYq9UzChU+VAgC2tnXLOnhoYKzoxHbmRd8U2JsN87Zdk63oMIF5DIIZfXg==",
-      "license": "MIT",
+      "version": "29.1.0",
+      "resolved": "https://registry.npmjs.org/@adyen/api-library/-/api-library-29.1.0.tgz",
+      "integrity": "sha512-yNIPv5HK9P94cAsIdSf4REr4a8p9OHJl/u7XwPhLHueqMZKP+LbCJY1t34fBt9oJ75mDfiy9u2fypo8v5Jx04A==",
       "dependencies": {
         "https-proxy-agent": "5.0.1"
       },
@@ -9562,9 +9561,9 @@
       "dev": true
     },
     "@adyen/api-library": {
-      "version": "28.0.0",
-      "resolved": "https://registry.npmjs.org/@adyen/api-library/-/api-library-28.0.0.tgz",
-      "integrity": "sha512-qgAa+WLrIkapJaXlqtJY9reHeoM4NYq9UzChU+VAgC2tnXLOnhoYKzoxHbmRd8U2JsN87Zdk63oMIF5DIIZfXg==",
+      "version": "29.1.0",
+      "resolved": "https://registry.npmjs.org/@adyen/api-library/-/api-library-29.1.0.tgz",
+      "integrity": "sha512-yNIPv5HK9P94cAsIdSf4REr4a8p9OHJl/u7XwPhLHueqMZKP+LbCJY1t34fBt9oJ75mDfiy9u2fypo8v5Jx04A==",
       "requires": {
         "@types/node": "18.19.69",
         "https-proxy-agent": "5.0.1"
diff --git a/processor/package.json b/processor/package.json
index 275a7252..a28d0396 100644
--- a/processor/package.json
+++ b/processor/package.json
@@ -21,7 +21,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "@adyen/api-library": "28.0.0",
+    "@adyen/api-library": "29.1.0",
     "@commercetools-backend/loggers": "24.7.2",
     "@commercetools/connect-payments-sdk": "0.24.0",
     "@fastify/autoload": "6.3.1",
diff --git a/processor/src/clients/adyen.client.ts b/processor/src/clients/adyen.client.ts
index 94234cb1..f58d867c 100644
--- a/processor/src/clients/adyen.client.ts
+++ b/processor/src/clients/adyen.client.ts
@@ -1,4 +1,5 @@
 import { Client, CheckoutAPI } from '@adyen/api-library';
+import { EnvironmentEnum } from '@adyen/api-library/lib/src/config';
 import { config } from '../config/config';
 import { log } from '../libs/logger';
 import { AdyenApiError, AdyenApiErrorData } from '../errors/adyen-api.error';
@@ -6,7 +7,7 @@ import { AdyenApiError, AdyenApiErrorData } from '../errors/adyen-api.error';
 export const AdyenApi = (): CheckoutAPI => {
   const apiClient = new Client({
     apiKey: config.adyenApiKey,
-    environment: config.adyenEnvironment.toUpperCase() as Environment,
+    environment: config.adyenEnvironment.toUpperCase() as EnvironmentEnum,
     ...(config.adyenLiveUrlPrefix && {
       liveEndpointUrlPrefix: config.adyenLiveUrlPrefix,
     }),
diff --git a/processor/test/data/cart-discounts.json b/processor/test/data/cart-discounts.json
index b43b95f5..8983a2f6 100644
--- a/processor/test/data/cart-discounts.json
+++ b/processor/test/data/cart-discounts.json
@@ -479,5 +479,6 @@
   "discountTypeCombination": {
     "type": "Stacking"
   },
-  "totalLineItemQuantity": 2
+  "totalLineItemQuantity": 2,
+  "priceRoundingMode": "HalfEven"
 }
diff --git a/processor/test/data/coco-cart-multiple-shipping.json b/processor/test/data/coco-cart-multiple-shipping.json
index 6e16c1c5..192b7ce2 100644
--- a/processor/test/data/coco-cart-multiple-shipping.json
+++ b/processor/test/data/coco-cart-multiple-shipping.json
@@ -503,5 +503,6 @@
       "key": "key1"
     }
   ],
-  "totalLineItemQuantity": 1
+  "totalLineItemQuantity": 1,
+  "priceRoundingMode": "HalfEven"
 }
diff --git a/processor/test/data/coco-cart-simple-shipping.json b/processor/test/data/coco-cart-simple-shipping.json
index 0603b34a..7a003e25 100644
--- a/processor/test/data/coco-cart-simple-shipping.json
+++ b/processor/test/data/coco-cart-simple-shipping.json
@@ -527,5 +527,6 @@
     "email": "Johannes.Vermeer@example.com"
   },
   "itemShippingAddresses": [],
-  "totalLineItemQuantity": 1
+  "totalLineItemQuantity": 1,
+  "priceRoundingMode": "HalfEven"
 }
diff --git a/processor/test/utils/mock-cart-data.ts b/processor/test/utils/mock-cart-data.ts
index 3096c9c3..673e64f8 100644
--- a/processor/test/utils/mock-cart-data.ts
+++ b/processor/test/utils/mock-cart-data.ts
@@ -35,6 +35,7 @@ export const mockGetCartResultShippingModeSimple = () => {
     shippingInfo: shippingInfo,
     createdAt: '2024-01-01T00:00:00Z',
     lastModifiedAt: '2024-01-01T00:00:00Z',
+    priceRoundingMode: 'HalfEven',
   };
   return mockGetCartResult;
 };
@@ -77,6 +78,7 @@ export const mockGetCartResultShippingModeMultiple = () => {
     ],
     createdAt: '2024-01-01T00:00:00Z',
     lastModifiedAt: '2024-01-01T00:00:00Z',
+    priceRoundingMode: 'HalfEven',
   };
   return mockGetCartResult;
 };