diff --git a/hal-classifier/swagger.json b/hal-classifier/swagger.json
index 403a01a..1623660 100644
--- a/hal-classifier/swagger.json
+++ b/hal-classifier/swagger.json
@@ -1,6 +1,6 @@
 {
 	"info": {
-        "version": "3.1.0"
+        "version": "4.0.0"
     },
     "servers": [{
         "url": "{scheme}://{hostname}",