diff --git a/swagger-spec.json b/swagger-spec.json
index 5166d339..98a3dcb6 100644
--- a/swagger-spec.json
+++ b/swagger-spec.json
@@ -2,7 +2,7 @@
   "openapi": "3.0.0",
   "info": {
     "title": "Boltz API",
-    "version": "3.8.1"
+    "version": "3.9.0"
   },
   "paths": {
     "/chain/fees": {