diff --git a/package.json b/package.json
index 634920d..2f6a3d0 100644
--- a/package.json
+++ b/package.json
@@ -47,9 +47,9 @@
     "endian-toggle": "^0.0.0",
     "lodash.get": "^4.1.2",
     "lodash.merge": "^4.3.0",
-    "minecraft-data": "^1.2.6",
+    "minecraft-data": "^1.4.1",
     "prismarine-nbt": "^1.0.0",
-    "protodef": "^1.1.2",
+    "protodef": "^1.2.3",
     "readable-stream": "^2.0.5",
     "ursa-purejs": "^0.0.3",
     "uuid-1345": "^0.99.6",