diff --git a/apps/web/package.json b/apps/web/package.json
index c7f6586..1776bcd 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -26,7 +26,7 @@
     "@inariwrite/core": "workspace:*",
     "@inariwrite/i18n": "workspace:*",
     "@inariwrite/plugin-sample": "workspace:*",
-    "i18next": "^24.2.0",
+    "i18next": "^26.0.5",
     "react": "^19.2.5",
     "react-dom": "^19.2.5",
     "react-i18next": "^15.2.0"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ebc0c0a..8444ff0 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -97,8 +97,8 @@ importers:
         specifier: workspace:*
         version: link:../../packages/plugin-sample
       i18next:
-        specifier: ^24.2.0
-        version: 24.2.3(typescript@5.9.3)
+        specifier: ^26.0.5
+        version: 26.0.5(typescript@5.9.3)
       react:
         specifier: ^19.2.5
         version: 19.2.5
@@ -107,7 +107,7 @@ importers:
         version: 19.2.5(react@19.2.5)
       react-i18next:
         specifier: ^15.2.0
-        version: 15.7.4(i18next@24.2.3(typescript@5.9.3))(react-dom@19.2.5(react@19.2.5))(react@19.2.5)(typescript@5.9.3)
+        version: 15.7.4(i18next@26.0.5(typescript@5.9.3))(react-dom@19.2.5(react@19.2.5))(react@19.2.5)(typescript@5.9.3)
     devDependencies:
       '@capacitor/android':
         specifier: ^7.2.0
@@ -2546,10 +2546,10 @@ packages:
     resolution: {integrity: sha512-tsYlhAYpjCKa//8rXZ9DqKEawhPoSytweBC2eNvcaDK+57RZLHGqNs3PZTQO6yekLFSuvA6AlnAfrw1uBvtb+Q==}
     hasBin: true
 
-  i18next@24.2.3:
-    resolution: {integrity: sha512-lfbf80OzkocvX7nmZtu7nSTNbrTYR52sLWxPtlXX1zAhVw8WEnFk4puUkCR4B1dNQwbSpEHHHemcZu//7EcB7A==}
+  i18next@26.0.5:
+    resolution: {integrity: sha512-9uHb4T27TdV36phJXcbpnRPt5yzAfqHXVrdASvmHZyPuZJtrLythd+GyXhiaHV5LlpuuskbAqhwPjmfTbKbi8w==}
     peerDependencies:
-      typescript: ^5
+      typescript: ^5 || ^6
     peerDependenciesMeta:
       typescript:
         optional: true
@@ -6752,7 +6752,7 @@ snapshots:
 
   human-id@4.1.3: {}
 
-  i18next@24.2.3(typescript@5.9.3):
+  i18next@26.0.5(typescript@5.9.3):
     dependencies:
       '@babel/runtime': 7.29.2
     optionalDependencies:
@@ -7631,11 +7631,11 @@ snapshots:
       react: 19.2.5
       scheduler: 0.27.0
 
-  react-i18next@15.7.4(i18next@24.2.3(typescript@5.9.3))(react-dom@19.2.5(react@19.2.5))(react@19.2.5)(typescript@5.9.3):
+  react-i18next@15.7.4(i18next@26.0.5(typescript@5.9.3))(react-dom@19.2.5(react@19.2.5))(react@19.2.5)(typescript@5.9.3):
     dependencies:
       '@babel/runtime': 7.29.2
       html-parse-stringify: 3.0.1
-      i18next: 24.2.3(typescript@5.9.3)
+      i18next: 26.0.5(typescript@5.9.3)
       react: 19.2.5
     optionalDependencies:
       react-dom: 19.2.5(react@19.2.5)