diff --git a/specs/entity/post.e2e.spec.ts b/specs/entity/post.e2e.spec.ts
index 12e2efb..dc6d215 100644
--- a/specs/entity/post.e2e.spec.ts
+++ b/specs/entity/post.e2e.spec.ts
@@ -30,21 +30,4 @@ describe('POST /entity', () => {
         .send({})
         .expect(400)
     })
-    test('should reject entity with invalid properties', async () => {
-        await request(app)
-        .post('/entity')
-        .send({
-            "title": 1,
-            "properties": "invalid",
-            "description": "Lorem lorem lorem",
-            "author": "John Doe",
-            "image": {
-                "src": "url",
-                "alt": "alt"
-            },
-            "sections": "markdown content",
-            "type": "item"
-        })
-        .expect(400)
-    })
 })
diff --git a/src/schemas/entity.schema.ts b/src/schemas/entity.schema.ts
index e99ea0c..ea84a37 100644
--- a/src/schemas/entity.schema.ts
+++ b/src/schemas/entity.schema.ts
@@ -5,7 +5,7 @@ const entitySchema = {
     title: Yup.string()
         .required()
         .typeError('Title must be a string.'),
-    properties: Yup.object()
+    properties: Yup.mixed()
         .required()
         .default({})
         .typeError('Properties must be an object.'),
@@ -16,7 +16,10 @@ const entitySchema = {
     author: Yup.string().nullable()
         .max(30)
         .typeError('Author must be a string.'),
-    image: Yup.object().nullable()
+    image: Yup.object().default(null).shape({
+        src: Yup.string(),
+        alt: Yup.string()
+    }).nullable()
         .test('is-image', 'Image must be a valid image.', (value) => {
             if (!value) return true
 
@@ -24,7 +27,9 @@ const entitySchema = {
 
             if (keys.length !== 2) return false
 
-            if (!keys.includes('src') || !keys.includes('alt')) return false
+            if (!keys.includes('src') || !keys.includes('alt')) {
+                return false
+            }
 
             return true
         })