diff --git a/packages/api/package.json b/packages/api/package.json
index 2a8ea63..96f04d6 100644
--- a/packages/api/package.json
+++ b/packages/api/package.json
@@ -13,7 +13,8 @@
     "fastify": "^4.26.2",
     "node-fetch": "^2.7.0",
     "octokit": "^3.2.1",
-    "ua-parser-js": "^1.0.37"
+    "ua-parser-js": "^1.0.37",
+    "yup": "^1.4.0"
   },
   "devDependencies": {
     "@tsconfig/node20": "^20.1.4",
diff --git a/packages/api/src/routes/v2/report.ts b/packages/api/src/routes/v2/report.ts
index 6d1a313..1aea105 100644
--- a/packages/api/src/routes/v2/report.ts
+++ b/packages/api/src/routes/v2/report.ts
@@ -1,39 +1,33 @@
 import { FastifyInstance, RouteShorthandOptions } from 'fastify';
 import environment from 'services/environment';
 import { octokit } from 'services/octokit';
+import { validatorCompiler } from 'services/validation';
 import { UAParser } from 'ua-parser-js';
+import * as yup from 'yup';
 
-type PostReportBody = {
-  reason?: string;
-  url: string;
-  userAgent?: string;
-  version: string;
-};
+interface PostReportBody {
+  readonly reason?: string;
+  readonly url: string;
+  readonly userAgent?: string;
+  readonly version: string;
+}
 
 export default (server: FastifyInstance, options: RouteShorthandOptions, done: () => void) => {
   server.post<{ Body: PostReportBody }>(
     '/report/',
     {
       schema: {
-        body: {
-          properties: {
-            reason: {
-              type: 'string',
-            },
-            url: {
-              type: 'string',
-            },
-            userAgent: {
-              type: 'string',
-            },
-            version: {
-              type: 'string',
-            },
-          },
-          required: ['url', 'version'],
-          type: 'object',
-        },
+        body: yup.object().shape({
+          reason: yup.string().min(10).required(),
+          url: yup.string().url().required(),
+          userAgent: yup.string(),
+          version: yup
+            .string()
+            .matches(/^\d+(\.\d+){0,3}$/)
+            .required(),
+        }),
       },
+      validatorCompiler,
     },
     async (request, reply) => {
       try {
diff --git a/packages/api/src/routes/v3/report.ts b/packages/api/src/routes/v3/report.ts
index ab1b204..830c2d1 100644
--- a/packages/api/src/routes/v3/report.ts
+++ b/packages/api/src/routes/v3/report.ts
@@ -1,7 +1,9 @@
 import { FastifyInstance, RouteShorthandOptions } from 'fastify';
 import environment from 'services/environment';
 import { octokit } from 'services/octokit';
+import { validatorCompiler } from 'services/validation';
 import { UAParser } from 'ua-parser-js';
+import * as yup from 'yup';
 
 interface PostReportBody {
   readonly reason?: string;
@@ -15,25 +17,17 @@ export default (server: FastifyInstance, _options: RouteShorthandOptions, done:
     '/report/',
     {
       schema: {
-        body: {
-          properties: {
-            reason: {
-              type: 'string',
-            },
-            url: {
-              type: 'string',
-            },
-            userAgent: {
-              type: 'string',
-            },
-            version: {
-              type: 'string',
-            },
-          },
-          required: ['reason', 'url', 'version'],
-          type: 'object',
-        },
+        body: yup.object().shape({
+          reason: yup.string().min(10).required(),
+          url: yup.string().url().required(),
+          userAgent: yup.string(),
+          version: yup
+            .string()
+            .matches(/^\d+(\.\d+){0,3}$/)
+            .required(),
+        }),
       },
+      validatorCompiler,
     },
     async (request, reply) => {
       const ua = new UAParser(request.body.userAgent ?? '').getResult();
@@ -109,7 +103,7 @@ function generateText(body: PostReportBody, ua: UAParser.IResult): string {
       ? ['#### 📱 Device', `${ua.device.vendor} (${ua.device.type})`]
       : []),
     '#### 📝 Reason',
-    body.reason ?? '-',
+    body.reason,
     '#### 🔗 URL',
     body.url,
     '#### 🏷️ Version',
diff --git a/packages/api/src/services/validation.ts b/packages/api/src/services/validation.ts
new file mode 100644
index 0000000..61e91a3
--- /dev/null
+++ b/packages/api/src/services/validation.ts
@@ -0,0 +1,7 @@
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+import type { FastifyRouteSchemaDef } from 'fastify/types/schema';
+
+export function validatorCompiler({ schema }: FastifyRouteSchemaDef<any>) {
+  return (data: any) => schema.validate(data);
+}
diff --git a/yarn.lock b/yarn.lock
index f34dc51..c8909eb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1329,6 +1329,7 @@ __metadata:
     tsconfig-paths: "npm:^4.2.0"
     typescript: "npm:^5.4.5"
     ua-parser-js: "npm:^1.0.37"
+    yup: "npm:^1.4.0"
   languageName: unknown
   linkType: soft
 
@@ -4456,6 +4457,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"property-expr@npm:^2.0.5":
+  version: 2.0.6
+  resolution: "property-expr@npm:2.0.6"
+  checksum: 10c0/69b7da15038a1146d6447c69c445306f66a33c425271235bb20507f1846dbf9577a8f9dfafe8acbfcb66f924b270157f155248308f026a68758f35fc72265b3c
+  languageName: node
+  linkType: hard
+
 "proxy-addr@npm:^2.0.7":
   version: 2.0.7
   resolution: "proxy-addr@npm:2.0.7"
@@ -5242,6 +5250,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"tiny-case@npm:^1.0.3":
+  version: 1.0.3
+  resolution: "tiny-case@npm:1.0.3"
+  checksum: 10c0/c0cbed35884a322265e2cd61ff435168d1ea523f88bf3864ce14a238ae9169e732649776964283a66e4eb882e655992081d4daf8c865042e2233425866111b35
+  languageName: node
+  linkType: hard
+
 "to-regex-range@npm:^5.0.1":
   version: 5.0.1
   resolution: "to-regex-range@npm:5.0.1"
@@ -5258,6 +5273,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"toposort@npm:^2.0.2":
+  version: 2.0.2
+  resolution: "toposort@npm:2.0.2"
+  checksum: 10c0/ab9ca91fce4b972ccae9e2f539d755bf799a0c7eb60da07fd985fce0f14c159ed1e92305ff55697693b5bc13e300f5417db90e2593b127d421c9f6c440950222
+  languageName: node
+  linkType: hard
+
 "touch@npm:^3.1.0":
   version: 3.1.0
   resolution: "touch@npm:3.1.0"
@@ -5378,7 +5400,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"type-fest@npm:^2.13.0":
+"type-fest@npm:^2.13.0, type-fest@npm:^2.19.0":
   version: 2.19.0
   resolution: "type-fest@npm:2.19.0"
   checksum: 10c0/a5a7ecf2e654251613218c215c7493574594951c08e52ab9881c9df6a6da0aeca7528c213c622bc374b4e0cb5c443aa3ab758da4e3c959783ce884c3194e12cb
@@ -5686,3 +5708,15 @@ __metadata:
   checksum: 10c0/856117aa15cf5103d2a2fb173f0ab4acb12b4b4d0ed3ab249fdbbf612e55d1cadfd27a6110940e24746fb0a78cf640b522cc8bca76f30a3b00b66e90cf82abe0
   languageName: node
   linkType: hard
+
+"yup@npm:^1.4.0":
+  version: 1.4.0
+  resolution: "yup@npm:1.4.0"
+  dependencies:
+    property-expr: "npm:^2.0.5"
+    tiny-case: "npm:^1.0.3"
+    toposort: "npm:^2.0.2"
+    type-fest: "npm:^2.19.0"
+  checksum: 10c0/fe142141365eed0f78fb2e18bdd2f10bf101385dae12a5f9de14884448067bdca16a54b547fc0bffec04a098dd70b4519ff366422f3da006fd11a0717a7863ac
+  languageName: node
+  linkType: hard