diff --git a/bower.json b/bower.json
index 67af554..751329a 100644
--- a/bower.json
+++ b/bower.json
@@ -26,7 +26,6 @@
     "purescript-enums": "master",
     "purescript-exceptions": "master",
     "purescript-functions": "master",
-    "purescript-globals": "master",
     "purescript-integers": "master",
     "purescript-js-date": "main",
     "purescript-maybe": "master",
diff --git a/src/Node/FS/Perms.purs b/src/Node/FS/Perms.purs
index 12368b1..34dc975 100644
--- a/src/Node/FS/Perms.purs
+++ b/src/Node/FS/Perms.purs
@@ -15,11 +15,10 @@ module Node.FS.Perms
 import Prelude
 
 import Data.Enum (toEnum)
-import Data.Int (fromNumber)
+import Data.Int (fromStringAs, octal)
 import Data.Maybe (Maybe(..), isNothing, fromJust)
 import Data.String (Pattern(Pattern), joinWith, drop, indexOf)
 import Data.String.CodeUnits (charAt, toCharArray)
-import Global (readInt)
 import Partial.Unsafe (unsafePartial)
 
 -- | A `Perm` value specifies what is allowed to be done with a particular
@@ -177,4 +176,4 @@ permsToString (Perms { u: u, g: g, o: o }) =
 
 -- | Convert a `Perms` value to an `Int`, via `permsToString`.
 permsToInt :: Perms -> Int
-permsToInt = unsafePartial $ fromJust <<< fromNumber <<< readInt 8 <<< permsToString
+permsToInt = unsafePartial $ fromJust <<< fromStringAs octal <<< permsToString