diff --git a/README.md b/README.md
index c4db217..ae0b53a 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,6 @@ Returns an index of some item in the array `== y`.
 
 The following comments apply to the above methods:
 
-* `array` can be either an array or an [`ndarray`](https://github.com/mikolalysenko/ndarray)
 * `cmp` is a comparison function, just like what you would pass to `Array.sort()`
 * `y` will always be the second argument passed to `cmp`, so you can ignore it if you are just binary searching on a predicate.
 * Assumes the array is sorted as would be the case if you called `Array.sort(cmp)` on it
@@ -46,4 +45,4 @@ The following comments apply to the above methods:
 * `bounds.eq` will return the first found item with the given index.  It can be a little faster than the other methods if you just want to find some random match and do not care where it is.
 
 ## Credits
-(c) 2013 Mikola Lysenko. MIT License
\ No newline at end of file
+(c) 2013 Mikola Lysenko. MIT License
diff --git a/package.json b/package.json
index 9611e24..bae5f7d 100644
--- a/package.json
+++ b/package.json
@@ -8,12 +8,10 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "tape": "~2.0.0",
-    "tap": "~0.4.4",
-    "ndarray": "~1.0.8"
+    "tape": "^4.0.0"
   },
   "scripts": {
-    "test": "tap test/*.js"
+    "test": "tape test/*.js"
   },
   "repository": {
     "type": "git",
diff --git a/search-bounds.js b/search-bounds.js
index 79d293a..a20d1f0 100644
--- a/search-bounds.js
+++ b/search-bounds.js
@@ -1,11 +1,11 @@
 "use strict"
 
-function compileSearch(funcName, predicate, reversed, extraArgs, useNdarray, earlyOut) {
+function compileSearch(funcName, predicate, reversed, extraArgs, earlyOut) {
   var code = [
     "function ", funcName, "(a,l,h,", extraArgs.join(","),  "){",
 earlyOut ? "" : "var i=", (reversed ? "l-1" : "h+1"),
 ";while(l<=h){\
-var m=(l+h)>>>1,x=a", useNdarray ? ".get(m)" : "[m]"]
+var m=(l+h)>>>1,x=a[m]"]
   if(earlyOut) {
     if(predicate.indexOf("c") < 0) {
       code.push(";if(x===y){return m}else if(x<=y){")
@@ -31,22 +31,14 @@ var m=(l+h)>>>1,x=a", useNdarray ? ".get(m)" : "[m]"]
 
 function compileBoundsSearch(predicate, reversed, suffix, earlyOut) {
   var result = new Function([
-  compileSearch("A", "x" + predicate + "y", reversed, ["y"], false, earlyOut),
-  compileSearch("B", "x" + predicate + "y", reversed, ["y"], true, earlyOut),
-  compileSearch("P", "c(x,y)" + predicate + "0", reversed, ["y", "c"], false, earlyOut),
-  compileSearch("Q", "c(x,y)" + predicate + "0", reversed, ["y", "c"], true, earlyOut),
+  compileSearch("A", "x" + predicate + "y", reversed, ["y"], earlyOut),
+  compileSearch("P", "c(x,y)" + predicate + "0", reversed, ["y", "c"], earlyOut),
 "function dispatchBsearch", suffix, "(a,y,c,l,h){\
-if(a.shape){\
 if(typeof(c)==='function'){\
-return Q(a,(l===undefined)?0:l|0,(h===undefined)?a.shape[0]-1:h|0,y,c)\
+return P(a,(l===void 0)?0:l|0,(h===void 0)?a.length-1:h|0,y,c)\
 }else{\
-return B(a,(c===undefined)?0:c|0,(l===undefined)?a.shape[0]-1:l|0,y)\
-}}else{\
-if(typeof(c)==='function'){\
-return P(a,(l===undefined)?0:l|0,(h===undefined)?a.length-1:h|0,y,c)\
-}else{\
-return A(a,(c===undefined)?0:c|0,(l===undefined)?a.length-1:l|0,y)\
-}}}\
+return A(a,(c===void 0)?0:c|0,(l===void 0)?a.length-1:l|0,y)\
+}}\
 return dispatchBsearch", suffix].join(""))
   return result()
 }
diff --git a/test/test.js b/test/test.js
index 4df8bcd..476d204 100644
--- a/test/test.js
+++ b/test/test.js
@@ -2,7 +2,6 @@
 
 var tape = require("tape")
 var bounds = require("../search-bounds.js")
-var ndarray = require("ndarray")
 
 tape("greaterThanEquals", function(t) {
 
@@ -18,7 +17,7 @@ tape("greaterThanEquals", function(t) {
       t.equals(lb(arr, values[i]), j)
     }
   }
-  
+
   checkArray([0,1,1,1,2], [-1, 0, 1, 2, 0.5, 1.5, 5])
 
   t.equals(lb([0,2,5,6], 0), 0)
@@ -32,7 +31,7 @@ tape("greaterThanEquals", function(t) {
   function cmp(a,b) {
     return a - b
   }
-  
+
   t.equals(lb([0,1,1,1,2], -1, cmp), 0)
   t.equals(lb([0,1,1,1,2], 0, cmp), 0)
   t.equals(lb([0,1,1,1,2], 1, cmp), 1)
@@ -133,4 +132,4 @@ tape("equals", function(t) {
   checkArray([0,1,1,1,2], [-1, 0, 1, 2, 0.5, 1.5, 5])
 
   t.end()
-})
\ No newline at end of file
+})