diff --git a/src/main/java/com/uploadcare/api/RequestHelper.java b/src/main/java/com/uploadcare/api/RequestHelper.java
index <HASH>..<HASH> 100644
--- a/src/main/java/com/uploadcare/api/RequestHelper.java
+++ b/src/main/java/com/uploadcare/api/RequestHelper.java
@@ -46,7 +46,7 @@ public class RequestHelper {
 
     private final Client client;
 
-    public static final String LIBRARY_VERSION = "3.0";
+    public static final String LIBRARY_VERSION = "3.1";
 
     public static final String DATE_FORMAT = "EEE, dd MMM yyyy HH:mm:ss Z";
bump lib version in rest api helper