diff --git a/preprocessor_config.json b/preprocessor_config.json
index b2be43c..4b92095 100644
--- a/preprocessor_config.json
+++ b/preprocessor_config.json
@@ -15,7 +15,7 @@
   ],
   "resample": 3,
   "size": {
-    'height': 224, 
-    'width': 224
+    "height": 224, 
+    "width": 224
   }
 }
\ No newline at end of file