diff --git a/data/json/monsters/mammal.json b/data/json/monsters/mammal.json
index d434c1f464859..bfa8e9ba49b8b 100644
--- a/data/json/monsters/mammal.json
+++ b/data/json/monsters/mammal.json
@@ -1838,7 +1838,7 @@
     "species": [ "MAMMAL" ],
     "volume": "386 L",
     "weight": "386 kg",
-    "hp": 375,
+    "hp": 366,
     "speed": 200,
     "material": [ "flesh" ],
     "symbol": "M",
@@ -1878,7 +1878,7 @@
     "species": [ "MAMMAL" ],
     "volume": "62500 ml",
     "weight": "81500 g",
-    "hp": 60,
+    "hp": 85,
     "speed": 120,
     "material": [ "flesh" ],
     "symbol": "C",
@@ -1918,7 +1918,7 @@
     "species": [ "MAMMAL" ],
     "volume": "675 L",
     "weight": "675 kg",
-    "hp": 500,
+    "hp": 590,
     "speed": 175,
     "material": [ "flesh" ],
     "symbol": "M",
@@ -1958,7 +1958,7 @@
     "species": [ "MAMMAL" ],
     "volume": "62500 ml",
     "weight": "81500 g",
-    "hp": 60,
+    "hp": 85,
     "speed": 120,
     "material": [ "flesh" ],
     "symbol": "C",