diff --git a/README.md b/README.md
index 396e8d0..c9105f6 100644
--- a/README.md
+++ b/README.md
@@ -106,40 +106,15 @@ If it is specified, the parser will call method `setDefaults` automatically (see
 The object returned by the parser contains all the properties as specified in the connection string,
 plus two methods: `setDefaults` and `build` (see below).
 
-#### Method `setDefaults`
+#### Method `setDefaults(defaults) => ConnectionString`
 
-```
-setDefaults(defaults) => void
-```
-
-The method takes an object with default values and sets those for all the properties that were not
-specified within the connection string. 
+The method takes an object with default values, sets those for all the properties that were not
+specified within the connection string, and returns the same object (itself). 
 
 You can make use of this method either explicitly, after constructing the class, or implicitly, by 
 passing `defaults` into the parser/constructor.
 
-Example:
- 
-```js
-var a = new ConnectionString('abc://localhost', {
-    // defaults:
-    port: 123,
-    user: 'guest'
-});
-// a => {
-//   protocol: 'abc',
-//   host: 'localhost',
-//   hostname: 'localhost',
-//   port: 123,
-//   user: 'guest'
-// }
-```
-
-#### Method `build`
-
-```
-build() => string
-```
+#### Method `build() => string`
 
 Constructs and returns the connection string from all the current properties.
 
diff --git a/package.json b/package.json
index 099bc3f..f1194e5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "connection-string",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "description": "Advanced URL Connection String Parser.",
   "main": "src/index.js",
   "typings": "src/index.d.ts",
diff --git a/src/index.d.ts b/src/index.d.ts
index dda9b68..30d3ce0 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -6,20 +6,20 @@ interface IConnectionString {
     hostname?: string
     port?: number
     segments?: string[]
-    params?: { [name: string]: any }
+    params?: { [name: string]: string }
 }
 
 export class ConnectionString implements IConnectionString {
     constructor(cd: string, defaults?: IConnectionString)
 
-    protocol: string;
-    user: string;
-    password: string;
-    host: string;
-    hostname: string;
-    port: number;
-    segments: string[];
-    params: { [name: string]: any };
+    protocol?: string;
+    user?: string;
+    password?: string;
+    host?: string;
+    hostname?: string;
+    port?: number;
+    segments?: string[];
+    params?: { [name: string]: string };
 
     build(): string;
 
diff --git a/test/main.ts b/test/main.ts
index 550f8da..7d8f327 100644
--- a/test/main.ts
+++ b/test/main.ts
@@ -11,12 +11,12 @@ if ('protocol' in a) {
 }
 
 var segment1: string = a.segments[0];
-var param1: number = a.params['first'];
+var param1: string = a.params['first'];
 
-a.params['first'] = 123;
+a.params['first'] = 'hello';
 
 a.params = {
-    first: 123,
+    first: '123',
     second: 'hello!'
 };