diff --git a/index.d.ts b/index.d.ts
index 3a3e3a2..eaba4d4 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -98,13 +98,13 @@ type JsonSchemaProperties = MutableStringMap<SchemaObject>
 
 type Methods = "get" | "put" | "post" | "delete" | "options" | "head" | "patch"
 
-interface OperationObject {
+type OperationObject = {
   operationId?: string
   parameters?: ReadonlyArray<ParameterObject>
   consumes?: string[]
   produces?: string[]
   responses: ResponsesObject
-}
+} & json.EmptyObject
 
 interface ResponsesObject {
   default?: ResponseObject
@@ -168,7 +168,7 @@ declare class Parameter {
   getValue(request: Request): ParameterValue
 }
 
-declare interface Operation {
+type Operation = {
   readonly operationId?: any
   method: string
   pathObject: Path
@@ -177,7 +177,7 @@ declare interface Operation {
   "x-ms-examples": any
   readonly consumes: string[]
   readonly produces: any
-  definition: Object
+  definition: OperationObject
   definitionFullyResolved: Object
   pathToDefinition: string[]
   parameterObjects: Parameter[]
diff --git a/package.json b/package.json
index 4a0dee1..fc9192c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "yasway",
-  "version": "1.5.10",
+  "version": "1.5.12",
   "description": "A library that simplifies Swagger integrations.",
   "main": "index.js",
   "types": "index.d.ts",
@@ -67,8 +67,8 @@
   },
   "dependencies": {
     "@ts-common/json": "^0.2.0",
-    "@ts-common/string-map": "^0.2.2",
-    "z-schema": "^3.24.2",
+    "@ts-common/string-map": "^0.2.3",
+    "z-schema": "^3.25.1",
     "debug": "^3.1.0",
     "faker": "^4.1.0",
     "js-base64": "^2.4.8",