diff --git a/data/tetra/modules/double/basic_hammer.json b/data/tetra/modules/double/basic_hammer.json
index fca9a0c..6fd5398 100644
--- a/data/tetra/modules/double/basic_hammer.json
+++ b/data/tetra/modules/double/basic_hammer.json
@@ -160,7 +160,7 @@
                     "hammer_dig": [ 0, 0.8333 ]
                 },
                 "durability": 0.55,
-                "integrity": -1,
+                "integrity": -3.5,
                 "magicCapacity": 1,
                 "glyph": {
                     "textureX": 64
@@ -187,7 +187,7 @@
             "tools": {
                 "hammer_dig": "minecraft:diamond"
             },
-            "integrity": -1,
+            "integrity": -5,
             "extract": {
                 "primaryAttributes": {
                     "generic.attack_damage": 0.5