diff --git a/internal/api/v1/docs/swagger.json b/internal/api/v1/docs/swagger.json
index 26e4d022..59b61075 100644
--- a/internal/api/v1/docs/swagger.json
+++ b/internal/api/v1/docs/swagger.json
@@ -5261,7 +5261,16 @@
       "x-omitempty": false
     },
     "netip.Addr": {
-      "type": "object",
+      "anyOf": [
+        {
+          "type": "string",
+          "format": "ipv4"
+        },
+        {
+          "type": "string",
+          "format": "ipv6"
+        }
+      ],
       "x-nullable": false,
       "x-omitempty": false
     },
diff --git a/scripts/fix-swagger-json.py b/scripts/fix-swagger-json.py
index d6f53b51..d411ebf3 100644
--- a/scripts/fix-swagger-json.py
+++ b/scripts/fix-swagger-json.py
@@ -7,6 +7,20 @@ path = "internal/api/v1/docs/swagger.json"
 with open(path, "r") as f:
     data = json.load(f)
 
+if isinstance(data["definitions"]["netip.Addr"], dict):
+    # MarshalText()
+    data["definitions"]["netip.Addr"] = {
+        "anyOf": [{
+            "type": "string",
+            "format": "ipv4"
+        }, {
+            "type": "string",
+            "format": "ipv6"
+        }],
+        "x-nullable": False,
+        "x-omitempty": False
+    }
+
 def set_non_nullable(data):
     if not isinstance(data, dict):
         return