diff --git a/src/middlewares/openapi.request.validator.ts b/src/middlewares/openapi.request.validator.ts
index 734502b9..82b0b7f7 100644
--- a/src/middlewares/openapi.request.validator.ts
+++ b/src/middlewares/openapi.request.validator.ts
@@ -343,6 +343,16 @@ export class RequestValidator {
       if (parameter.content && parameter.content[TYPE_JSON]) {
         parameterSchema = parameter.content[TYPE_JSON].schema;
         parseJson.push({ name, reqField });
+      } else if (
+        // handle complex json types in schema
+        $in === 'query' &&
+        (parameterSchema.allOf ||
+          parameterSchema.oneOf ||
+          parameterSchema.anyOf ||
+          (parameterSchema.type === 'object' &&
+            parameterSchema.type !== 'array'))
+      ) {
+        parseJson.push({ name, reqField });
       }
 
       if (!parameterSchema) {
diff --git a/test/serialized.objects.spec.ts b/test/serialized.objects.spec.ts
index e24f9993..b4943185 100644
--- a/test/serialized.objects.spec.ts
+++ b/test/serialized.objects.spec.ts
@@ -6,7 +6,7 @@ import { createApp } from './common/app';
 
 const packageJson = require('../package.json');
 
-describe.only(packageJson.name, () => {
+describe(packageJson.name, () => {
   let app = null;
 
   before(async () => {