diff --git a/ChangeLog.md b/ChangeLog.md
index c772e36..4bc2e3a 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -16,7 +16,7 @@ Erik Bakstad contributed most of this work.
 MongoDB Java driver dependency has been [updated to 2.11.2](https://github.com/mongodb/mongo-java-driver/wiki/Release-Notes).
 
 
-## monger.core/drop-db
+### monger.core/drop-db
 
 `monger.core/drop-db` is a new function that drops a database by name.
 
@@ -36,6 +36,12 @@ implementation that can use any database:
   (comment "This cache instance will use the altcache DB"))
 ```
 
+### Ragtime changes
+
+Bug fix: `monger.ragtime/applied-migration-ids` now returns a vector (instead of a set) in order to preserve the original creation order of the migrations.
+
+Ragtime dependency has been updated to 0.3.3.
+
 
 ## Changes between 1.4.0 and 1.5.0
 
diff --git a/project.clj b/project.clj
index c36e7db..a66603b 100644
--- a/project.clj
+++ b/project.clj
@@ -7,7 +7,7 @@
                  [org.mongodb/mongo-java-driver "2.11.2"]
                  [com.novemberain/validateur    "1.4.0"]
                  [clojurewerkz/support          "0.15.0"]
-                 [ragtime/ragtime.core          "0.3.2"]]
+                 [ragtime/ragtime.core          "0.3.3"]]
   :test-selectors {:default     (fn [m]
                                   (and (not (:performance m))
                                        (not (:edge-features m))
diff --git a/src/clojure/monger/ragtime.clj b/src/clojure/monger/ragtime.clj
index 857c7f1..7628b7d 100644
--- a/src/clojure/monger/ragtime.clj
+++ b/src/clojure/monger/ragtime.clj
@@ -24,11 +24,11 @@
       (let [xs (with-collection migrations-collection
                  (find {})
                  (sort {:created_at 1}))]
-        (set (map :_id xs))))))
+        (vec (map :_id xs))))))
 
 
 (defn flush-migrations!
   "REMOVES all the information about previously performed migrations"
   [db]
   (mg/with-db db
-    (mc/remove migrations-collection)))
\ No newline at end of file
+    (mc/remove migrations-collection)))
diff --git a/test/monger/test/ragtime_test.clj b/test/monger/test/ragtime_test.clj
index 6fdbbeb..8915b9b 100644
--- a/test/monger/test/ragtime_test.clj
+++ b/test/monger/test/ragtime_test.clj
@@ -22,10 +22,10 @@
           key  "1"]
       (mc/remove db coll {})
       (is (not (mc/any? db coll {:_id key})))
-      (is (not (contains? (applied-migration-ids db) key)))
+      (is (not (some #{key} (applied-migration-ids db))))
       (add-migration-id db key)
       (is (mc/any? db coll {:_id key}))
-      (is (contains? (applied-migration-ids db) key))))
+      (is (some #{key} (applied-migration-ids db)))))
 
 
   (deftest test-remove-migration-id
@@ -35,6 +35,23 @@
       (mc/remove db coll {})
       (add-migration-id db key)
       (is (mc/any? db coll {:_id key}))
-      (is (contains? (applied-migration-ids db) key))
+      (is (some #{key} (applied-migration-ids db)))
       (remove-migration-id db key)
-      (is (not (contains? (applied-migration-ids db) key))))))
+      (is (not (some #{key} (applied-migration-ids db))))))
+
+
+  (deftest test-migrations-ordering
+    (let [db   (mg/get-db "monger-test")
+          coll "meta.migrations"
+          all-keys  [ "9" "4" "7" "1" "5" "3" "6" "2" "8"]]
+      (mc/remove db coll {})
+
+      (doseq [key all-keys]
+        (add-migration-id db key))
+
+      (doseq [key all-keys]
+        (is (mc/any? db coll {:_id key}))
+        (is (some #{key} (applied-migration-ids db))))
+
+      (testing "Applied migrations must come out in creation order"
+        (is (= all-keys (applied-migration-ids db)))))))