diff --git a/swagger/docs.go b/swagger/docs.go
index e332125b1..f5eabbb44 100644
--- a/swagger/docs.go
+++ b/swagger/docs.go
@@ -3526,6 +3526,10 @@ const docTemplate = `{
                     "description": "(optional) output format",
                     "type": "string"
                 },
+                "sample_rate": {
+                    "description": "(optional) desired output sample rate",
+                    "type": "integer"
+                },
                 "stream": {
                     "description": "(optional) enable streaming TTS",
                     "type": "boolean"
diff --git a/swagger/swagger.json b/swagger/swagger.json
index 7c7151f77..bb56c2b38 100644
--- a/swagger/swagger.json
+++ b/swagger/swagger.json
@@ -3519,6 +3519,10 @@
                     "description": "(optional) output format",
                     "type": "string"
                 },
+                "sample_rate": {
+                    "description": "(optional) desired output sample rate",
+                    "type": "integer"
+                },
                 "stream": {
                     "description": "(optional) enable streaming TTS",
                     "type": "boolean"
diff --git a/swagger/swagger.yaml b/swagger/swagger.yaml
index e2323a05a..984493df5 100644
--- a/swagger/swagger.yaml
+++ b/swagger/swagger.yaml
@@ -1362,6 +1362,9 @@ definitions:
       response_format:
         description: (optional) output format
         type: string
+      sample_rate:
+        description: (optional) desired output sample rate
+        type: integer
       stream:
         description: (optional) enable streaming TTS
         type: boolean