diff --git a/lib/adapters/base.js b/lib/adapters/base.js
index 30447c8..743fd62 100644
--- a/lib/adapters/base.js
+++ b/lib/adapters/base.js
@@ -68,6 +68,12 @@ class Adapter extends EventEmitter {
         });
     }
 
+    update(model, pk, data, callback) {
+        process.nextTick(function() {
+            callback(new Error("this adapter's insert function is not implemented yet."));
+        });
+    }
+
     getDBName() {
         return "";
     }