diff --git a/package.json b/package.json
index d3e0889..d4ae302 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@brainylab/fetch-wrapper",
-	"version": "0.5.4",
+	"version": "0.5.5",
 	"keywords": [
 		"fetch",
 		"wrapper",
diff --git a/src/lib/fetch-wrapper.ts b/src/lib/fetch-wrapper.ts
index 29c3920..22181c4 100644
--- a/src/lib/fetch-wrapper.ts
+++ b/src/lib/fetch-wrapper.ts
@@ -4,6 +4,7 @@ import { createPath } from '../utils/create-path';
 import { mergeConfigs } from '../utils/merge-configs';
 import { objectToUrlParams } from '../utils/object-to-url-params';
 
+import type { ObjectToUrl } from '../utils/object-to-url-params';
 import type { FetchWrapperProps } from './create-instance';
 
 export type FwprInterceptors = {
@@ -17,7 +18,7 @@ export type FetchWrapperDefaults = {
 	interceptors?: FwprInterceptors;
 };
 type FetchWrapperInit = RequestInit & {
-	params?: Record<string, string | number | string[] | number[]>;
+	params?: ObjectToUrl;
 };
 
 type FetchWrapperResponse<T> = {
diff --git a/src/utils/object-to-url-params.ts b/src/utils/object-to-url-params.ts
index c2c6f8e..f40231f 100644
--- a/src/utils/object-to-url-params.ts
+++ b/src/utils/object-to-url-params.ts
@@ -1,6 +1,6 @@
-type ObjectToUrl = Record<
+export type ObjectToUrl = Record<
 	string,
-	string | number | string[] | number[] | undefined | null
+	string | number | string[] | number[] | boolean | undefined | null
 >;
 
 function cleanObject(obj: ObjectToUrl): ObjectToUrl {