diff --git a/package-lock.json b/package-lock.json
index 20eb144..7112f52 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "MIT",
       "dependencies": {
         "@hono/swagger-ui": "^0.5.1",
-        "@hono/zod-openapi": "^0.19.6",
+        "@hono/zod-openapi": "^1.1.2",
         "hono": "^4.7.8",
         "octokit": "^4.1.3"
       },
@@ -24,14 +24,15 @@
       }
     },
     "node_modules/@asteasolutions/zod-to-openapi": {
-      "version": "7.3.0",
-      "resolved": "https://registry.npmjs.org/@asteasolutions/zod-to-openapi/-/zod-to-openapi-7.3.0.tgz",
-      "integrity": "sha512-7tE/r1gXwMIvGnXVUdIqUhCU1RevEFC4Jk6Bussa0fk1ecbnnINkZzj1EOAJyE/M3AI25DnHT/zKQL1/FPFi8Q==",
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@asteasolutions/zod-to-openapi/-/zod-to-openapi-8.1.0.tgz",
+      "integrity": "sha512-tQFxVs05J/6QXXqIzj6rTRk3nj1HFs4pe+uThwE95jL5II2JfpVXkK+CqkO7aT0Do5AYqO6LDrKpleLUFXgY+g==",
+      "license": "MIT",
       "dependencies": {
         "openapi3-ts": "^4.1.2"
       },
       "peerDependencies": {
-        "zod": "^3.20.2"
+        "zod": "^4.0.0"
       }
     },
     "node_modules/@cloudflare/kv-asset-handler": {
@@ -640,28 +641,31 @@
       }
     },
     "node_modules/@hono/zod-openapi": {
-      "version": "0.19.6",
-      "resolved": "https://registry.npmjs.org/@hono/zod-openapi/-/zod-openapi-0.19.6.tgz",
-      "integrity": "sha512-qD2I0i5Ksry8gf47rXR6tuUAfv5S/wRZPRUNn+y8vOkgArDtIs30Ha3KGHeuGhcMk773D197IlPUppSCbHt6iQ==",
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@hono/zod-openapi/-/zod-openapi-1.1.2.tgz",
+      "integrity": "sha512-XqfK6cdEMo7Nz7N4rYgfndvQDPGf1T4TzZnG2dEqx5aIiSN4MNIC/73xy1KhUo7pGSKlf9fKL9VOtOkRUNHu6w==",
+      "license": "MIT",
       "dependencies": {
-        "@asteasolutions/zod-to-openapi": "^7.3.0",
-        "@hono/zod-validator": "^0.5.0"
+        "@asteasolutions/zod-to-openapi": "^8.1.0",
+        "@hono/zod-validator": "^0.7.3",
+        "openapi3-ts": "^4.5.0"
       },
       "engines": {
         "node": ">=16.0.0"
       },
       "peerDependencies": {
         "hono": ">=4.3.6",
-        "zod": "3.*"
+        "zod": "^4.0.0"
       }
     },
     "node_modules/@hono/zod-validator": {
-      "version": "0.5.0",
-      "resolved": "https://registry.npmjs.org/@hono/zod-validator/-/zod-validator-0.5.0.tgz",
-      "integrity": "sha512-ds5bW6DCgAnNHP33E3ieSbaZFd5dkV52ZjyaXtGoR06APFrCtzAsKZxTHwOrJNBdXsi0e5wNwo5L4nVEVnJUdg==",
+      "version": "0.7.3",
+      "resolved": "https://registry.npmjs.org/@hono/zod-validator/-/zod-validator-0.7.3.tgz",
+      "integrity": "sha512-uYGdgVib3RlGD698WR5dVM0zB3UuPY5vHKXffGUbUh7r4xY+mFIhF3/v4AcQVLrU5CQdBso8BJr4wuVoCrjTuQ==",
+      "license": "MIT",
       "peerDependencies": {
         "hono": ">=3.9.0",
-        "zod": "^3.19.1"
+        "zod": "^3.25.0 || ^4.0.0"
       }
     },
     "node_modules/@img/sharp-darwin-arm64": {
@@ -2228,11 +2232,12 @@
       "dev": true
     },
     "node_modules/openapi3-ts": {
-      "version": "4.4.0",
-      "resolved": "https://registry.npmjs.org/openapi3-ts/-/openapi3-ts-4.4.0.tgz",
-      "integrity": "sha512-9asTNB9IkKEzWMcHmVZE7Ts3kC9G7AFHfs8i7caD8HbI76gEjdkId4z/AkP83xdZsH7PLAnnbl47qZkXuxpArw==",
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/openapi3-ts/-/openapi3-ts-4.5.0.tgz",
+      "integrity": "sha512-jaL+HgTq2Gj5jRcfdutgRGLosCy/hT8sQf6VOy+P+g36cZOjI1iukdPnijC+4CmeRzg/jEllJUboEic2FhxhtQ==",
+      "license": "MIT",
       "dependencies": {
-        "yaml": "^2.5.0"
+        "yaml": "^2.8.0"
       }
     },
     "node_modules/path-to-regexp": {
@@ -2835,14 +2840,15 @@
       }
     },
     "node_modules/yaml": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.7.0.tgz",
-      "integrity": "sha512-+hSoy/QHluxmC9kCIJyL/uyFmLmc+e5CFR5Wa+bpIhIj85LVb9ZH2nVnqrHoSvKogwODv0ClqZkmiSSaIH5LTA==",
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.8.1.tgz",
+      "integrity": "sha512-lcYcMxX2PO9XMGvAJkJ3OsNMw+/7FKes7/hgerGUYWIoWu5j/+YQqcZr5JnPZWzOsEBgMbSbiSTn/dv/69Mkpw==",
+      "license": "ISC",
       "bin": {
         "yaml": "bin.mjs"
       },
       "engines": {
-        "node": ">= 14"
+        "node": ">= 14.6"
       }
     },
     "node_modules/youch": {
@@ -2857,9 +2863,10 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.24.2",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.24.2.tgz",
-      "integrity": "sha512-lY7CDW43ECgW9u1TcT3IoXHflywfVqDYze4waEz812jR/bZ8FHDsl7pFQoSZTz5N+2NqRXs8GBwnAwo3ZNxqhQ==",
+      "version": "4.1.11",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.11.tgz",
+      "integrity": "sha512-WPsqwxITS2tzx1bzhIKsEs19ABD5vmCVa4xBo2tq/SrV4RNZtfws1EnCWQXM6yh8bD08a1idvkB5MZSBiZsjwg==",
+      "license": "MIT",
       "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
diff --git a/package.json b/package.json
index e018c5e..e606f11 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   },
   "dependencies": {
     "@hono/swagger-ui": "^0.5.1",
-    "@hono/zod-openapi": "^0.19.6",
+    "@hono/zod-openapi": "^1.1.2",
     "hono": "^4.7.8",
     "octokit": "^4.1.3"
   },