diff --git a/package-lock.json b/package-lock.json
index 4e09e0d86c..27fc7504d7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27615,10 +27615,9 @@
             }
         },
         "node_modules/react-i18next": {
-            "version": "15.2.0",
-            "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-15.2.0.tgz",
-            "integrity": "sha512-iJNc8111EaDtVTVMKigvBtPHyrJV+KblWG73cUxqp+WmJCcwkzhWNFXmkAD5pwP2Z4woeDj/oXDdbjDsb3Gutg==",
-            "license": "MIT",
+            "version": "15.4.0",
+            "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-15.4.0.tgz",
+            "integrity": "sha512-Py6UkX3zV08RTvL6ZANRoBh9sL/ne6rQq79XlkHEdd82cZr2H9usbWpUNVadJntIZP2pu3M2rL1CN+5rQYfYFw==",
             "dependencies": {
                 "@babel/runtime": "^7.25.0",
                 "html-parse-stringify": "^3.0.1"
@@ -35645,7 +35644,7 @@
                 "nhsuk-react-components": "^5.0.0",
                 "react": "^18",
                 "react-dom": "^18",
-                "react-i18next": "^15.2.0",
+                "react-i18next": "^15.4.0",
                 "react-intl": "^7.0.1",
                 "sass": "^1.83.0"
             },
diff --git a/packages/cpt-ui/package.json b/packages/cpt-ui/package.json
index 8f67e63dee..100f731869 100644
--- a/packages/cpt-ui/package.json
+++ b/packages/cpt-ui/package.json
@@ -18,7 +18,7 @@
         "nhsuk-react-components": "^5.0.0",
         "react": "^18",
         "react-dom": "^18",
-        "react-i18next": "^15.2.0",
+        "react-i18next": "^15.4.0",
         "react-intl": "^7.0.1",
         "sass": "^1.83.0"
     },