diff --git a/lib/freeze.js b/lib/freeze.js
index 8d88d80..c273ed7 100644
--- a/lib/freeze.js
+++ b/lib/freeze.js
@@ -26,7 +26,10 @@ function recur(object) {
  * Deeply freeze a plain javascript object.
  *
  * If `process.env.NODE_ENV === 'production'`, this returns the original object
- * witout freezing.
+ * without freezing.
+ *
+ * Or if `process.env.UPDEEP_MODE === 'dangerously_never_freeze'`, this returns the original object
+ * without freezing.
  *
  * @function
  * @sig a -> a
@@ -38,6 +41,10 @@ function freeze(object) {
     return object;
   }
 
+  if (process.env.UPDEEP_MODE === 'dangerously_never_freeze') {
+    return object;
+  }
+
   if (needsFreezing(object)) {
     recur(object);
   }