diff --git a/package.json b/package.json
index 00a95279..efa19152 100644
--- a/package.json
+++ b/package.json
@@ -127,7 +127,7 @@
     "@types/glob": "^8.1.0",
     "@types/html-validator": "^5.0.6",
     "@types/k6": "^0.47.3",
-    "@types/koa": "^2.13.12",
+    "@types/koa": "^2.15.0",
     "@types/koa-mount": "^4.0.5",
     "@typescript-eslint/eslint-plugin": "^6.13.2",
     "@typescript-eslint/parser": "^6.13.2",
@@ -140,7 +140,7 @@
     "glob": "^10.3.10",
     "graphql": "^16.8.1",
     "html-validator": "^6.0.1",
-    "koa": "^2.14.2",
+    "koa": "^2.15.3",
     "koa-mount": "^4.0.0",
     "node-fetch": "^3.3.2",
     "prettier": "^3.1.0",
diff --git a/src/use/koa.ts b/src/use/koa.ts
index 0d29b8a2..ef4c6584 100644
--- a/src/use/koa.ts
+++ b/src/use/koa.ts
@@ -120,9 +120,9 @@ export function createHandler<Context extends OperationContext = undefined>(
         method: ctx.method,
         headers: ctx.headers,
         body: () => {
-          if (ctx.body) {
+          if ('body' in ctx.request) {
             // in case koa has a body parser
-            return ctx.body;
+            return ctx.request.body as Record<string, unknown>;
           }
           return new Promise<string>((resolve) => {
             let body = '';
diff --git a/yarn.lock b/yarn.lock
index 2ef44ccc..aaac0539 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4137,7 +4137,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/koa@npm:*, @types/koa@npm:^2.13.12":
+"@types/koa@npm:*":
   version: 2.13.12
   resolution: "@types/koa@npm:2.13.12"
   dependencies:
@@ -4153,6 +4153,22 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/koa@npm:^2.15.0":
+  version: 2.15.0
+  resolution: "@types/koa@npm:2.15.0"
+  dependencies:
+    "@types/accepts": "npm:*"
+    "@types/content-disposition": "npm:*"
+    "@types/cookies": "npm:*"
+    "@types/http-assert": "npm:*"
+    "@types/http-errors": "npm:*"
+    "@types/keygrip": "npm:*"
+    "@types/koa-compose": "npm:*"
+    "@types/node": "npm:*"
+  checksum: 2be9dff1ef66bf15b037386c188893761a8fb46390a5e1d2a2031d9e1ba4473e40ddfbd625980a504bd804d7148b3e230c18e240503f33eac3b6e5e830645d30
+  languageName: node
+  linkType: hard
+
 "@types/long@npm:^4.0.0":
   version: 4.0.2
   resolution: "@types/long@npm:4.0.2"
@@ -5737,13 +5753,13 @@ __metadata:
   languageName: node
   linkType: hard
 
-"cookies@npm:~0.8.0":
-  version: 0.8.0
-  resolution: "cookies@npm:0.8.0"
+"cookies@npm:~0.9.0":
+  version: 0.9.1
+  resolution: "cookies@npm:0.9.1"
   dependencies:
     depd: "npm:~2.0.0"
     keygrip: "npm:~1.1.0"
-  checksum: 5da4d72ba81c2740511751ac8ea9506e10e2366b9ad3360333581e4667fd8d063d02c5be0bef16177de3e366b8128ed2b72921e2952c79cbca084d177e529bba
+  checksum: 4816461a38d907b20f3fb7a2bc4741fe580e7a195f3e248ef7025cb3be56a07638a0f4e72553a5f535554ca30172c8a3245c63ac72c9737cec034e9a47773392
   languageName: node
   linkType: hard
 
@@ -7585,7 +7601,7 @@ __metadata:
     "@types/glob": "npm:^8.1.0"
     "@types/html-validator": "npm:^5.0.6"
     "@types/k6": "npm:^0.47.3"
-    "@types/koa": "npm:^2.13.12"
+    "@types/koa": "npm:^2.15.0"
     "@types/koa-mount": "npm:^4.0.5"
     "@typescript-eslint/eslint-plugin": "npm:^6.13.2"
     "@typescript-eslint/parser": "npm:^6.13.2"
@@ -7598,7 +7614,7 @@ __metadata:
     glob: "npm:^10.3.10"
     graphql: "npm:^16.8.1"
     html-validator: "npm:^6.0.1"
-    koa: "npm:^2.14.2"
+    koa: "npm:^2.15.3"
     koa-mount: "npm:^4.0.0"
     node-fetch: "npm:^3.3.2"
     prettier: "npm:^3.1.0"
@@ -8706,15 +8722,15 @@ __metadata:
   languageName: node
   linkType: hard
 
-"koa@npm:^2.14.2":
-  version: 2.14.2
-  resolution: "koa@npm:2.14.2"
+"koa@npm:^2.15.3":
+  version: 2.15.3
+  resolution: "koa@npm:2.15.3"
   dependencies:
     accepts: "npm:^1.3.5"
     cache-content-type: "npm:^1.0.0"
     content-disposition: "npm:~0.5.2"
     content-type: "npm:^1.0.4"
-    cookies: "npm:~0.8.0"
+    cookies: "npm:~0.9.0"
     debug: "npm:^4.3.2"
     delegates: "npm:^1.0.0"
     depd: "npm:^2.0.0"
@@ -8733,7 +8749,7 @@ __metadata:
     statuses: "npm:^1.5.0"
     type-is: "npm:^1.6.16"
     vary: "npm:^1.1.2"
-  checksum: be3592ad2ed61068aaf19f4957de07602c4141cb33e049727d2453010d90cb9f4756c87103c9b44e24cf31f061116f4479b0a4ce7638c96fd64652f559ad5b7b
+  checksum: b2c2771a4ee5268f9d039ce025b9c3798a0baba8c3cf3895a6fc2d286363e0cd2c98c02a5b87f14100baa2bc17d854eed6ed80f9bd41afda1d056f803b206514
   languageName: node
   linkType: hard