diff --git a/types/joi/index.d.ts b/types/joi/index.d.ts
index 0772c82fbe..26314637ad 100644
--- a/types/joi/index.d.ts
+++ b/types/joi/index.d.ts
@@ -162,7 +162,7 @@ export interface ValidationResult<T> {
 }
 
 export interface SchemaMap {
-    [key: string]: Schema | SchemaMap | (Schema | SchemaMap)[];
+    [key: string]: string | number | boolean | object | null | Schema | SchemaMap | (Schema | SchemaMap)[];
 }
 
 export interface Schema extends AnySchema<Schema> {
@@ -575,20 +575,16 @@ export interface ArraySchema extends AnySchema<ArraySchema> {
      *
      * @param type - a joi schema object to validate each array item against.
      */
-    items(...types: Schema[]): ArraySchema;
-    items(...types: SchemaMap[]): ArraySchema;
-    items(types: Schema[]): ArraySchema;
-    items(types: SchemaMap[]): ArraySchema;
+    items(...types: (Schema | SchemaMap)[]): ArraySchema;
+    items(types: (Schema | SchemaMap)[]): ArraySchema;
 
     /**
      * Lists the types in sequence order for the array values where:
      * @param type - a joi schema object to validate against each array item in sequence order. type can be an array of values, or multiple values can be passed as individual arguments.
      * If a given type is .required() then there must be a matching item with the same index position in the array. Errors will contain the number of items that didn't match. Any unmatched item having a label will be mentioned explicitly.
      */
-    ordered(...types: Schema[]): ArraySchema;
-    ordered(...types: SchemaMap[]): ArraySchema;
-    ordered(types: Schema[]): ArraySchema;
-    ordered(types: SchemaMap[]): ArraySchema;
+    ordered(...types: (Schema | SchemaMap)[]): ArraySchema;
+    ordered(types: (Schema | SchemaMap)[]): ArraySchema;
 
     /**
      * Specifies the minimum number of items in the array.
diff --git a/types/joi/joi-tests.ts b/types/joi/joi-tests.ts
index fb0537f6f9..63b247bc98 100644
--- a/types/joi/joi-tests.ts
+++ b/types/joi/joi-tests.ts
@@ -181,6 +181,17 @@ schemaMap = {
     ],
     c: arrSchema
 };
+schemaMap = {
+    a: 1,
+    b: {
+        b1: '1',
+        b2: 2
+    },
+    c: [
+        { c1: true },
+        { c2: null }
+    ]
+}
 
 // --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
 
@@ -892,9 +903,9 @@ const Joi3 = Joi.extend({
     language: {
         asd: 'must be exactly asd(f)',
     },
-    pre (value, state, options) {
+    pre(value, state, options) {
     },
-    describe (description) {
+    describe(description) {
     },
     rules: [
         {
@@ -902,10 +913,10 @@ const Joi3 = Joi.extend({
             params: {
                 allowF: Joi.boolean().default(false),
             },
-            setup (params) {
+            setup(params) {
                 const fIsAllowed = params.allowF;
             },
-            validate (params, value, state, options) {
+            validate(params, value, state, options) {
                 if (value === 'asd' || params.allowF && value === 'asdf') {
                     return value;
                 }