diff --git a/README.md b/README.md
index aa062a2..c39f695 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,10 @@ func DaDataExample()  {
 }
 ```
 
-## Credentials
+
+## Configuration 
+
+### Credentials
 
 `DADATA_API_KEY` and `DADATA_SECRET_KEY` environment variables are used by default to authenticate client.
 
@@ -61,5 +64,17 @@ creds := client.Credentials{
 api := NewSuggestApi(client.WithCredentialProvider(&creds))
 ```
 
+
+### HTTP client
+
+HTTP client may be overridden with custom one:
+
+```go
+httpClient := &http.Client{}
+
+api := NewSuggestApi(WithHttpClient(httpClient))
+```
+
+
 ## Licence
 MIT see [LICENSE](LICENSE)
diff --git a/VERSION b/VERSION
index 005119b..8e8299d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.4.1
+2.4.2