diff --git a/package.json b/package.json
index 1cb907f..9f70678 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "@imaginelearning/httprx",
 	"author": "Imagine Learning",
-	"version": "0.1.6",
+	"version": "0.1.7",
 	"license": "MIT",
 	"main": "dist/index.js",
 	"module": "dist/httprx.esm.js",
diff --git a/src/http.ts b/src/http.ts
index 365b66b..5a9ab47 100644
--- a/src/http.ts
+++ b/src/http.ts
@@ -155,7 +155,7 @@ export class Http<TError, TTransform> {
 		return this.requestWithBody<T>('PUT');
 	}
 
-	query(query: URLSearchParams | { [key: string]: string | string[] | boolean | number | number[] } | string) {
+	query(query: URLSearchParams | { [key: string]: string | string[] | boolean | number | number[] | undefined | null } | string) {
 		let queryString: string;
 		if (query instanceof URLSearchParams) {
 			queryString = (query as URLSearchParams).toString();