diff --git a/web/app/account/(commonLayout)/account-page/email-change-modal.tsx b/web/app/account/(commonLayout)/account-page/email-change-modal.tsx
index 6e702770f7..e74ca9ed41 100644
--- a/web/app/account/(commonLayout)/account-page/email-change-modal.tsx
+++ b/web/app/account/(commonLayout)/account-page/email-change-modal.tsx
@@ -214,7 +214,8 @@ const EmailChangeModal = ({ onClose, email, show }: Props) => {
             <div className="body-md-medium text-text-warning">{t('account.changeEmail.authTip', { ns: 'common' })}</div>
             <div className="body-md-regular text-text-secondary">
               <Trans
-                i18nKey="common.account.changeEmail.content1"
+                i18nKey="account.changeEmail.content1"
+                ns="common"
                 components={{ email: <span className="body-md-medium text-text-primary"></span> }}
                 values={{ email }}
               />
@@ -244,7 +245,8 @@ const EmailChangeModal = ({ onClose, email, show }: Props) => {
           <div className="space-y-0.5 pb-2 pt-1">
             <div className="body-md-regular text-text-secondary">
               <Trans
-                i18nKey="common.account.changeEmail.content2"
+                i18nKey="account.changeEmail.content2"
+                ns="common"
                 components={{ email: <span className="body-md-medium text-text-primary"></span> }}
                 values={{ email }}
               />
@@ -333,7 +335,8 @@ const EmailChangeModal = ({ onClose, email, show }: Props) => {
           <div className="space-y-0.5 pb-2 pt-1">
             <div className="body-md-regular text-text-secondary">
               <Trans
-                i18nKey="common.account.changeEmail.content4"
+                i18nKey="account.changeEmail.content4"
+                ns="common"
                 components={{ email: <span className="body-md-medium text-text-primary"></span> }}
                 values={{ email: mail }}
               />
diff --git a/web/app/components/app/log/empty-element.tsx b/web/app/components/app/log/empty-element.tsx
index d433c7fd72..e42a1df7d5 100644
--- a/web/app/components/app/log/empty-element.tsx
+++ b/web/app/components/app/log/empty-element.tsx
@@ -34,7 +34,8 @@ const EmptyElement: FC<{ appDetail: App }> = ({ appDetail }) => {
         </span>
         <div className="system-sm-regular mt-2 text-text-tertiary">
           <Trans
-            i18nKey="appLog.table.empty.element.content"
+            i18nKey="table.empty.element.content"
+            ns="appLog"
             components={{
               shareLink: <Link href={`${appDetail.site.app_base_url}${basePath}/${getWebAppType(appDetail.mode)}/${appDetail.site.access_token}`} className="text-util-colors-blue-blue-600" target="_blank" rel="noopener noreferrer" />,
               testLink: <Link href={getRedirectionPath(true, appDetail)} className="text-util-colors-blue-blue-600" />,
diff --git a/web/app/components/app/overview/settings/index.tsx b/web/app/components/app/overview/settings/index.tsx
index 0117510890..428a475da9 100644
--- a/web/app/components/app/overview/settings/index.tsx
+++ b/web/app/components/app/overview/settings/index.tsx
@@ -413,6 +413,7 @@ const SettingsModal: FC<ISettingsModalProps> = ({
                 <p className={cn('body-xs-regular pb-0.5 text-text-tertiary')}>
                   <Trans
                     i18nKey={`${prefixSettings}.more.privacyPolicyTip`}
+                    ns="appOverview"
                     components={{ privacyPolicyLink: <Link href="https://dify.ai/privacy" target="_blank" rel="noopener noreferrer" className="text-text-accent" /> }}
                   />
                 </p>
diff --git a/web/app/components/header/account-setting/members-page/transfer-ownership-modal/index.tsx b/web/app/components/header/account-setting/members-page/transfer-ownership-modal/index.tsx
index 80dc91702b..1d54167458 100644
--- a/web/app/components/header/account-setting/members-page/transfer-ownership-modal/index.tsx
+++ b/web/app/components/header/account-setting/members-page/transfer-ownership-modal/index.tsx
@@ -140,7 +140,8 @@ const TransferOwnershipModal = ({ onClose, show }: Props) => {
             <div className="body-md-regular text-text-secondary">{t('members.transferModal.warningTip', { ns: 'common' })}</div>
             <div className="body-md-regular text-text-secondary">
               <Trans
-                i18nKey="common.members.transferModal.sendTip"
+                i18nKey="members.transferModal.sendTip"
+                ns="common"
                 components={{ email: <span className="body-md-medium text-text-primary"></span> }}
                 values={{ email: userProfile.email }}
               />
@@ -170,7 +171,8 @@ const TransferOwnershipModal = ({ onClose, show }: Props) => {
           <div className="pb-2 pt-1">
             <div className="body-md-regular text-text-secondary">
               <Trans
-                i18nKey="common.members.transferModal.verifyContent"
+                i18nKey="members.transferModal.verifyContent"
+                ns="common"
                 components={{ email: <span className="body-md-medium text-text-primary"></span> }}
                 values={{ email: userProfile.email }}
               />
diff --git a/web/app/components/plugins/base/deprecation-notice.tsx b/web/app/components/plugins/base/deprecation-notice.tsx
index ef59dc3645..7e32133045 100644
--- a/web/app/components/plugins/base/deprecation-notice.tsx
+++ b/web/app/components/plugins/base/deprecation-notice.tsx
@@ -74,6 +74,7 @@ const DeprecationNotice: FC<DeprecationNoticeProps> = ({
               <Trans
                 t={t}
                 i18nKey={`${i18nPrefix}.fullMessage`}
+                ns="plugin"
                 components={{
                   CustomLink: (
                     <Link
diff --git a/web/app/components/plugins/install-plugin/install-from-local-package/steps/install.tsx b/web/app/components/plugins/install-plugin/install-from-local-package/steps/install.tsx
index 484b1976aa..1e36daefc1 100644
--- a/web/app/components/plugins/install-plugin/install-from-local-package/steps/install.tsx
+++ b/web/app/components/plugins/install-plugin/install-from-local-package/steps/install.tsx
@@ -122,6 +122,7 @@ const Installed: FC<Props> = ({
           <p>
             <Trans
               i18nKey={`${i18nPrefix}.fromTrustSource`}
+              ns="plugin"
               components={{ trustSource: <span className="system-md-semibold" /> }}
             />
           </p>
diff --git a/web/app/components/plugins/reference-setting-modal/auto-update-setting/index.tsx b/web/app/components/plugins/reference-setting-modal/auto-update-setting/index.tsx
index 93e7a01811..4b4f7cb0b0 100644
--- a/web/app/components/plugins/reference-setting-modal/auto-update-setting/index.tsx
+++ b/web/app/components/plugins/reference-setting-modal/auto-update-setting/index.tsx
@@ -152,6 +152,7 @@ const AutoUpdateSetting: FC<Props> = ({
                 <div className="body-xs-regular mt-1 text-right text-text-tertiary">
                   <Trans
                     i18nKey={`${i18nPrefix}.changeTimezone`}
+                    ns="plugin"
                     components={{
                       setTimezone: <SettingTimeZone />,
                     }}
diff --git a/web/app/components/rag-pipeline/components/rag-pipeline-header/publisher/popup.tsx b/web/app/components/rag-pipeline/components/rag-pipeline-header/publisher/popup.tsx
index aa1884d207..b006c9acfb 100644
--- a/web/app/components/rag-pipeline/components/rag-pipeline-header/publisher/popup.tsx
+++ b/web/app/components/rag-pipeline/components/rag-pipeline-header/publisher/popup.tsx
@@ -118,7 +118,8 @@ const Popup = () => {
             children: (
               <div className="system-xs-regular text-text-secondary">
                 <Trans
-                  i18nKey="datasetPipeline.publishPipeline.success.tip"
+                  i18nKey="publishPipeline.success.tip"
+                  ns="datasetPipeline"
                   components={{
                     CustomLink: (
                       <Link
diff --git a/web/app/components/workflow/block-selector/rag-tool-recommendations/index.tsx b/web/app/components/workflow/block-selector/rag-tool-recommendations/index.tsx
index e9df035a03..3c62f488dc 100644
--- a/web/app/components/workflow/block-selector/rag-tool-recommendations/index.tsx
+++ b/web/app/components/workflow/block-selector/rag-tool-recommendations/index.tsx
@@ -96,7 +96,8 @@ const RAGToolRecommendations = ({
           {!isFetchingRAGRecommendedPlugins && recommendedPlugins.length === 0 && unInstalledPlugins.length === 0 && (
             <p className="system-xs-regular px-3 py-1 text-text-tertiary">
               <Trans
-                i18nKey="pipeline.ragToolSuggestions.noRecommendationPlugins"
+                i18nKey="ragToolSuggestions.noRecommendationPlugins"
+                ns="pipeline"
                 components={{
                   CustomLink: (
                     <Link
diff --git a/web/package.json b/web/package.json
index 000113cde9..317502cb66 100644
--- a/web/package.json
+++ b/web/package.json
@@ -89,7 +89,7 @@
     "fast-deep-equal": "^3.1.3",
     "html-entities": "^2.6.0",
     "html-to-image": "1.11.13",
-    "i18next": "^23.16.8",
+    "i18next": "^25.7.3",
     "i18next-resources-to-backend": "^1.2.1",
     "immer": "^11.1.0",
     "js-audio-recorder": "^1.0.7",
@@ -118,7 +118,7 @@
     "react-easy-crop": "^5.5.3",
     "react-hook-form": "^7.65.0",
     "react-hotkeys-hook": "^4.6.2",
-    "react-i18next": "^15.7.4",
+    "react-i18next": "^16.5.0",
     "react-markdown": "^9.1.0",
     "react-multi-email": "^1.0.25",
     "react-papaparse": "^4.4.0",
diff --git a/web/pnpm-lock.yaml b/web/pnpm-lock.yaml
index 5c2986c190..a2d3debc3c 100644
--- a/web/pnpm-lock.yaml
+++ b/web/pnpm-lock.yaml
@@ -184,8 +184,8 @@ importers:
         specifier: 1.11.13
         version: 1.11.13
       i18next:
-        specifier: ^23.16.8
-        version: 23.16.8
+        specifier: ^25.7.3
+        version: 25.7.3(typescript@5.9.3)
       i18next-resources-to-backend:
         specifier: ^1.2.1
         version: 1.2.1
@@ -271,8 +271,8 @@ importers:
         specifier: ^4.6.2
         version: 4.6.2(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
       react-i18next:
-        specifier: ^15.7.4
-        version: 15.7.4(i18next@23.16.8)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(typescript@5.9.3)
+        specifier: ^16.5.0
+        version: 16.5.0(i18next@25.7.3(typescript@5.9.3))(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(typescript@5.9.3)
       react-markdown:
         specifier: ^9.1.0
         version: 9.1.0(@types/react@19.2.7)(react@19.2.3)
@@ -5953,8 +5953,13 @@ packages:
   i18next-resources-to-backend@1.2.1:
     resolution: {integrity: sha512-okHbVA+HZ7n1/76MsfhPqDou0fptl2dAlhRDu2ideXloRRduzHsqDOznJBef+R3DFZnbvWoBW+KxJ7fnFjd6Yw==}
 
-  i18next@23.16.8:
-    resolution: {integrity: sha512-06r/TitrM88Mg5FdUXAKL96dJMzgqLE5dv3ryBAra4KCwD9mJ4ndOTS95ZuymIGoE+2hzfdaMak2X11/es7ZWg==}
+  i18next@25.7.3:
+    resolution: {integrity: sha512-2XaT+HpYGuc2uTExq9TVRhLsso+Dxym6PWaKpn36wfBmTI779OQ7iP/XaZHzrnGyzU4SHpFrTYLKfVyBfAhVNA==}
+    peerDependencies:
+      typescript: ^5
+    peerDependenciesMeta:
+      typescript:
+        optional: true
 
   iconv-lite@0.6.3:
     resolution: {integrity: sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==}
@@ -7414,10 +7419,10 @@ packages:
       react: '>=16.8.1'
       react-dom: '>=16.8.1'
 
-  react-i18next@15.7.4:
-    resolution: {integrity: sha512-nyU8iKNrI5uDJch0z9+Y5XEr34b0wkyYj3Rp+tfbahxtlswxSCjcUL9H0nqXo9IR3/t5Y5PKIA3fx3MfUyR9Xw==}
+  react-i18next@16.5.0:
+    resolution: {integrity: sha512-IMpPTyCTKxEj8klCrLKUTIUa8uYTd851+jcu2fJuUB9Agkk9Qq8asw4omyeHVnOXHrLgQJGTm5zTvn8HpaPiqw==}
     peerDependencies:
-      i18next: '>= 23.4.0'
+      i18next: '>= 25.6.2'
       react: '>= 16.8.0'
       react-dom: '*'
       react-native: '*'
@@ -15124,9 +15129,11 @@ snapshots:
     dependencies:
       '@babel/runtime': 7.28.4
 
-  i18next@23.16.8:
+  i18next@25.7.3(typescript@5.9.3):
     dependencies:
       '@babel/runtime': 7.28.4
+    optionalDependencies:
+      typescript: 5.9.3
 
   iconv-lite@0.6.3:
     dependencies:
@@ -16877,12 +16884,13 @@ snapshots:
       react: 19.2.3
       react-dom: 19.2.3(react@19.2.3)
 
-  react-i18next@15.7.4(i18next@23.16.8)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(typescript@5.9.3):
+  react-i18next@16.5.0(i18next@25.7.3(typescript@5.9.3))(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(typescript@5.9.3):
     dependencies:
       '@babel/runtime': 7.28.4
       html-parse-stringify: 3.0.1
-      i18next: 23.16.8
+      i18next: 25.7.3(typescript@5.9.3)
       react: 19.2.3
+      use-sync-external-store: 1.6.0(react@19.2.3)
     optionalDependencies:
       react-dom: 19.2.3(react@19.2.3)
       typescript: 5.9.3