diff --git a/src/main/java/org/lanit/controllers/JSONController.java b/src/main/java/org/lanit/controllers/JSONController.java
index 74e9a58..fe9a183 100644
--- a/src/main/java/org/lanit/controllers/JSONController.java
+++ b/src/main/java/org/lanit/controllers/JSONController.java
@@ -51,13 +51,17 @@ public class JSONController {
                 response.setInfo(modifiedInfo);
                 response.setUuid(deleteRequest.getUuid());
                 response.setLastUpdate(Instant.now().toString());
-                return ResponseEntity.ok(response);
+                return ResponseEntity.ok()
+                    .contentType(MediaType.APPLICATION_JSON) // Явно указываем без charset
+                    .body(response);
 
             } else {
                 ErrorResponse error = new ErrorResponse();
                 error.setStatus("error");
                 error.setMessage("Передан некорректный action - " + action);
-                return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(error);
+                return ResponseEntity.status(HttpStatus.BAD_REQUEST)
+                    .contentType(MediaType.APPLICATION_JSON)
+                    .body(error);
             }
 
         } catch (RuntimeException e) {