diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a88929..10eea97 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@
 * [BUGFIX] `Model.prototype.unlock` was not accepting `cas` argument thus the unlock operation could not succeed
 * [ADDED] `Instance.prototype.touch` which operates on all reference documents in addition to the main document
 * [ADDED] new public method `Instance.prototype.getRefDocs` which has been part of private API
-* [CHANGED] `Instance.prototype.update` method behaves as one would expect, that is, more or less its syntax sugar for `instance.setData()` followed by `instance.save()`. This also fixes the method design issue which broke update hooks.
+* [CHANGED] `Instance.prototype.update` method behaves as one would expect, that is, its syntax sugar for `instance.setData()` followed by `instance.save()`. This also fixes the method design issue which broke update hooks.
 * [BUGFIX] `storageAdapter` methods should always clone received `options` object as native `couchbase` sdk does not do that and we need to be sure options objects are not shared and mutated between individual operations
 * [REMOVED] unused `debug` module dependency
 * [BUGFIX] updated `bluebird` module dependency
diff --git a/lib/instance.js b/lib/instance.js
index 9e655b5..0a865b9 100644
--- a/lib/instance.js
+++ b/lib/instance.js
@@ -663,7 +663,7 @@ Instance.prototype.save = Promise.method(function(options) {
 
 /**
  * This is similar to seting data on the instance and then calling {@link Instance#save},
- * (respectively {@link Instance#replace}) however in this case when the operation failes,
+ * (respectively {@link Instance#replace}) however in this case when the operation fails,
  * the Model's instance data are restored to the previous state.
  *
  * @param {Object} data