diff --git a/data/json/items/armor/coats.json b/data/json/items/armor/coats.json
index a0637063a538c..b7aeb74cd5456 100644
--- a/data/json/items/armor/coats.json
+++ b/data/json/items/armor/coats.json
@@ -1348,7 +1348,7 @@
         "moves": 80
       }
     ],
-    "warmth": 20,
+    "warmth": 15,
     "material_thickness": 0.95,
     "snippet_category": [
       {