diff --git a/packages/schema/src/index.ts b/packages/schema/src/index.ts
index fdae3b0..d01271a 100644
--- a/packages/schema/src/index.ts
+++ b/packages/schema/src/index.ts
@@ -1,3 +1,4 @@
 export * from './general'
 export * from './user'
 export * from './changelog'
+export * from './version'
diff --git a/packages/schema/src/version/base.ts b/packages/schema/src/version/base.ts
new file mode 100644
index 0000000..8ca5828
--- /dev/null
+++ b/packages/schema/src/version/base.ts
@@ -0,0 +1,24 @@
+import { z } from '@hono/zod-openapi'
+
+export const VersionOutput = z
+  .object({
+    id: z.string().uuid().openapi({
+      example: '9f00f912-f687-42ef-84d7-efde48ca11ef',
+    }),
+    changelogId: z.string().uuid().openapi({
+      example: '8f00f912-f687-42ef-84d7-efde48ca11ef',
+    }),
+    version: z.string().openapi({
+      example: '1.0.0',
+    }),
+    markdown: z.string().openapi({
+      example: '### Changelog\n\n- Added a new feature',
+    }),
+    releasedAt: z.date().optional().openapi({
+      example: '2024-01-01T00:00:00.000Z',
+    }),
+    status: z.enum(['draft', 'review', 'published']).default('draft').openapi({
+      example: 'draft',
+    }),
+  })
+  .openapi('Version')
diff --git a/packages/schema/src/version/byId.ts b/packages/schema/src/version/byId.ts
new file mode 100644
index 0000000..3a35343
--- /dev/null
+++ b/packages/schema/src/version/byId.ts
@@ -0,0 +1,14 @@
+import { z } from '@hono/zod-openapi'
+
+export const VersionByIdParams = z.object({
+  id: z
+    .string()
+    .uuid()
+    .openapi({
+      param: {
+        name: 'id',
+        in: 'path',
+      },
+      example: 'a5ed5965-0506-44e6-aaec-0465ff9fe092',
+    }),
+})
diff --git a/packages/schema/src/version/create.ts b/packages/schema/src/version/create.ts
new file mode 100644
index 0000000..1c2c35a
--- /dev/null
+++ b/packages/schema/src/version/create.ts
@@ -0,0 +1,15 @@
+import { z } from '@hono/zod-openapi'
+import { VersionOutput } from './base'
+
+export const VersionCreateOutput = VersionOutput
+export const VersionCreateInput = z
+  .object({
+    changelogId: z.string().uuid(),
+    version: z.string(),
+    releasedAt: z.date().or(z.string()).optional(),
+    status: z.enum(['draft', 'review', 'published']).default('draft'),
+    markdown: z.string(),
+  })
+  .openapi({
+    required: ['changelogId', 'version', 'markdown', 'releasedAt'],
+  })
diff --git a/packages/schema/src/version/index.ts b/packages/schema/src/version/index.ts
new file mode 100644
index 0000000..4882adb
--- /dev/null
+++ b/packages/schema/src/version/index.ts
@@ -0,0 +1,5 @@
+export * from './base'
+export * from './byId'
+export * from './create'
+export * from './list'
+export * from './update'
diff --git a/packages/schema/src/version/list.ts b/packages/schema/src/version/list.ts
new file mode 100644
index 0000000..e552c20
--- /dev/null
+++ b/packages/schema/src/version/list.ts
@@ -0,0 +1,4 @@
+import { z } from '@hono/zod-openapi'
+import { VersionOutput } from './base'
+
+export const VersionListOutput = z.array(VersionOutput)
diff --git a/packages/schema/src/version/update.ts b/packages/schema/src/version/update.ts
new file mode 100644
index 0000000..43114d1
--- /dev/null
+++ b/packages/schema/src/version/update.ts
@@ -0,0 +1,20 @@
+import { z } from '@hono/zod-openapi'
+import { VersionOutput } from './base'
+
+export const VersionUpdateOutput = VersionOutput
+export const VersionUpdateInput = z
+  .object({
+    markdown: z.string().optional(),
+    status: z
+      .enum(['draft', 'review', 'published'])
+      .default('draft')
+      .optional(),
+  })
+  .openapi({})
+export const VersionUpdateParams = z
+  .object({
+    id: z.string().uuid(),
+  })
+  .openapi({
+    required: ['id'],
+  })