diff --git a/dist/holidayapi.js b/dist/holidayapi.js
index 571dafa..90fbcc9 100644
--- a/dist/holidayapi.js
+++ b/dist/holidayapi.js
@@ -56,15 +56,15 @@ var HolidayAPI = (function () {
         var getYours = 'get yours at HolidayAPI.com';
         var uuidRegExp = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/;
         if (!key) {
-            throw new Error("Missing API key, " + getYours);
+            throw new Error("Missing API key, ".concat(getYours));
         }
         if (!uuidRegExp.test(key)) {
-            throw new Error("Invalid API key, " + getYours);
+            throw new Error("Invalid API key, ".concat(getYours));
         }
         if (version !== 1) {
             throw new Error('Invalid version number, expected "1"');
         }
-        this.baseUrl = "https://holidayapi.com/v" + version + "/";
+        this.baseUrl = "https://holidayapi.com/v".concat(version, "/");
         this.key = key;
     }
     HolidayAPI.prototype.createUrl = function (endpoint, request) {
@@ -78,7 +78,7 @@ var HolidayAPI = (function () {
             var response, payload, err_1;
             return __generator(this, function (_a) {
                 switch (_a.label) {
-                    case 0: return [4, node_fetch_1.default(this.createUrl(endpoint, request))];
+                    case 0: return [4, (0, node_fetch_1.default)(this.createUrl(endpoint, request))];
                     case 1:
                         response = _a.sent();
                         _a.label = 2;
@@ -112,15 +112,6 @@ var HolidayAPI = (function () {
         if (request === void 0) { request = {}; }
         return __awaiter(this, void 0, void 0, function () {
             return __generator(this, function (_a) {
-                if (!request.country) {
-                    throw new Error('Missing country');
-                }
-                else if (!request.year) {
-                    throw new Error('Missing year');
-                }
-                else if (request.previous && request.upcoming) {
-                    throw new Error('Previous and upcoming are mutually exclusive');
-                }
                 return [2, this.request('holidays', request)];
             });
         });
@@ -136,18 +127,6 @@ var HolidayAPI = (function () {
         if (request === void 0) { request = {}; }
         return __awaiter(this, void 0, void 0, function () {
             return __generator(this, function (_a) {
-                if (!request.country) {
-                    throw new Error('Missing country');
-                }
-                else if (!request.start) {
-                    throw new Error('Missing start date');
-                }
-                else if (!request.days) {
-                    throw new Error('Missing days');
-                }
-                else if (request.days < 1) {
-                    throw new Error('Days must be 1 or more');
-                }
                 return [2, this.request('workday', request)];
             });
         });
@@ -156,15 +135,6 @@ var HolidayAPI = (function () {
         if (request === void 0) { request = {}; }
         return __awaiter(this, void 0, void 0, function () {
             return __generator(this, function (_a) {
-                if (!request.country) {
-                    throw new Error('Missing country');
-                }
-                else if (!request.start) {
-                    throw new Error('Missing start date');
-                }
-                else if (!request.end) {
-                    throw new Error('Missing end date');
-                }
                 return [2, this.request('workdays', request)];
             });
         });
diff --git a/dist/index.js b/dist/index.js
index 0e0334d..ef36cc6 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1,7 +1,11 @@
 "use strict";
 var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
     if (k2 === undefined) k2 = k;
-    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
 }) : (function(o, m, k, k2) {
     if (k2 === undefined) k2 = k;
     o[k2] = m[k];
diff --git a/package.json b/package.json
index 72beced..99d0ea5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "holidayapi",
-  "version": "6.0.0",
+  "version": "6.0.1",
   "description": "Official Node.js library for Holiday API",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",