diff --git a/backend/node/package-lock.json b/backend/node/package-lock.json
index 3fd914a..57766e8 100644
--- a/backend/node/package-lock.json
+++ b/backend/node/package-lock.json
@@ -6,7 +6,7 @@
     "": {
       "name": "sumup-examples-node",
       "dependencies": {
-        "@sumup/sdk": "^0.1.8",
+        "@sumup/sdk": "^0.1.9",
         "express": "^5.2.1"
       },
       "devDependencies": {
@@ -189,9 +189,9 @@
       }
     },
     "node_modules/@sumup/sdk": {
-      "version": "0.1.8",
-      "resolved": "https://registry.npmjs.org/@sumup/sdk/-/sdk-0.1.8.tgz",
-      "integrity": "sha512-f4QjASvqExp0NicCXgkP0tzsH5Wb8Kig+/Uk2VvKfezMlq5m/Q8MIAQ2kuWAzPbk5QwO5WT66hVNvmrFzDyzbw==",
+      "version": "0.1.9",
+      "resolved": "https://registry.npmjs.org/@sumup/sdk/-/sdk-0.1.9.tgz",
+      "integrity": "sha512-+0w5IXUq+CfiUCVMftuSn2LXCqyoKw1XTjDSyJXJABYB6nimHY9mzQODNYPYqUdtZ073E/cqysYQhigfpzLkRw==",
       "license": "Apache-2.0",
       "engines": {
         "node": ">=18"
diff --git a/backend/node/package.json b/backend/node/package.json
index c2efc00..871a820 100644
--- a/backend/node/package.json
+++ b/backend/node/package.json
@@ -8,7 +8,7 @@
     "lint:fix": "biome check --write"
   },
   "dependencies": {
-    "@sumup/sdk": "^0.1.8",
+    "@sumup/sdk": "^0.1.9",
     "express": "^5.2.1"
   },
   "devDependencies": {