diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d0535e027..c4a4f2d23 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -103,8 +103,8 @@ catalogs:
       specifier: ^8.0.0
       version: 8.0.0
     hono:
-      specifier: ^4.11.4
-      version: 4.11.4
+      specifier: ^4.12.18
+      version: 4.12.18
     lint-staged:
       specifier: ^15.5.2
       version: 15.5.2
@@ -308,7 +308,7 @@ importers:
         version: 2.1.1
       hono:
         specifier: 'catalog:'
-        version: 4.11.4
+        version: 4.12.18
       lucide-react:
         specifier: 'catalog:'
         version: 0.503.0(react@19.1.0)
@@ -3023,6 +3023,7 @@ packages:
 
   '@ungap/structured-clone@1.3.0':
     resolution: {integrity: sha512-WmoN8qaIAo7WTYWbAZuG8PYEhn5fkz7dZrqTBZ7dtt//lL2Gwms1IcnQ5yHqjDfX8Ft5j4YzDM23f87zBfDe9g==}
+    deprecated: Potential CWE-502 - Update to 1.3.1 or higher
 
   '@valibot/to-json-schema@1.7.0':
     resolution: {integrity: sha512-Y3pPVibbIOHzohrlxSINvO7w/bvXkoYS3BQHoImV9ynE+bXKf171bdMucPurV2zp7gdmt0L1HCcNAsbo7cFRQw==}
@@ -4014,6 +4015,10 @@ packages:
     resolution: {integrity: sha512-U7tt8JsyrxSRKspfhtLET79pU8K+tInj5QZXs1jSugO1Vq5dFj3kmZsRldo29mTBfcjDRVRXrEZ6LS63Cog9ZA==}
     engines: {node: '>=16.9.0'}
 
+  hono@4.12.18:
+    resolution: {integrity: sha512-RWzP96k/yv0PQfyXnWjs6zot20TqfpfsNXhOnev8d1InAxubW93L11/oNUc3tQqn2G0bSdAOBpX+2uDFHV7kdQ==}
+    engines: {node: '>=16.9.0'}
+
   hookable@5.5.3:
     resolution: {integrity: sha512-Yc+BQe8SvoXH1643Qez1zqLRmbA5rCL+sSmk6TVos0LWVfNIB7PGncdlId77WzLGSIB5KaWgTaNTs2lNVEI6VQ==}
 
@@ -7120,6 +7125,10 @@ snapshots:
     dependencies:
       hono: 4.11.4
 
+  '@hono/node-server@1.19.9(hono@4.12.18)':
+    dependencies:
+      hono: 4.12.18
+
   '@img/colour@1.1.0': {}
 
   '@img/sharp-darwin-arm64@0.33.5':
@@ -7457,7 +7466,7 @@ snapshots:
 
   '@modelcontextprotocol/sdk@1.26.0(@cfworker/json-schema@4.1.1)(zod@3.25.76)':
     dependencies:
-      '@hono/node-server': 1.19.9(hono@4.11.4)
+      '@hono/node-server': 1.19.9(hono@4.12.18)
       ajv: 8.17.1
       ajv-formats: 3.0.1(ajv@8.17.1)
       content-type: 1.0.5
@@ -7467,7 +7476,7 @@ snapshots:
       eventsource-parser: 3.0.6
       express: 5.2.1
       express-rate-limit: 8.2.1(express@5.2.1)
-      hono: 4.11.4
+      hono: 4.12.18
       jose: 6.1.3
       json-schema-typed: 8.0.2
       pkce-challenge: 5.0.0
@@ -9764,6 +9773,8 @@ snapshots:
 
   hono@4.11.4: {}
 
+  hono@4.12.18: {}
+
   hookable@5.5.3: {}
 
   html-url-attributes@3.0.1: {}
@@ -12204,7 +12215,7 @@ snapshots:
       '@silvia-odwyer/photon-node': 0.3.4
       chalk: 5.4.1
       fs-extra: 11.3.0
-      hono: 4.11.4
+      hono: 4.12.18
       jsdoc-api: 9.3.4
       just-filter-object: 3.2.0
       just-map-values: 3.2.0
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index ed07a7f4a..ae38160c7 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -37,7 +37,7 @@ catalog:
   commander: ^14.0.0
   dotenv: ^16.6.1
   dotenv-cli: ^8.0.0
-  hono: ^4.11.4
+  hono: ^4.12.18
   lint-staged: ^15.5.2
   lucide-react: ^0.503.0
   miniflare: 4.20260401.0