diff --git a/.travis.yml b/.travis.yml
index c764079..81aec5c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: clojure
-before_install: lein plugin install lein-multi 1.1.0
-before_script: ./bin/ci/before_script.sh
-script: lein multi test
+lein: lein2
+before_script:
+  - ./bin/ci/before_script.sh
+script: lein2 with-profile dev:1.4 test
diff --git a/ChangeLog.md b/ChangeLog.md
index 06ecc78..ce145b4 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -45,6 +45,10 @@ Here is what it feels like:
 (seed  "pages" "http://clojure.org/rationale")
 ```
 
+### Leiningen 2
+
+Monger now uses [Leiningen 2](https://github.com/technomancy/leiningen/wiki/Upgrading).
+
 
 ### monger.core/set-connection!
 
diff --git a/README.md b/README.md
index acac3af..d8621e1 100644
--- a/README.md
+++ b/README.md
@@ -361,13 +361,9 @@ Neocons is part of the group of libraries known as ClojureWerkz, together with
 
 ## Development
 
-Install [lein-multi](https://github.com/maravillas/lein-multi) with
+Monger uses [Leiningen 2](https://github.com/technomancy/leiningen/blob/master/doc/TUTORIAL.md). Make sure you have it installed and then run tests against Clojure 1.3.0 and 1.4.0[-beta4] using
 
-    lein plugin install lein-multi 1.1.0
-
-then run tests against Clojure 1.3.0 and 1.4.0[-beta1] using
-
-    lein multi test
+    lein2 with-profile test:1.4 test
 
 Then create a branch and make your changes on it. Once you are done with your changes and all tests pass, submit a pull request
 on Github.
diff --git a/project.clj b/project.clj
index d7c0ac7..48d2809 100644
--- a/project.clj
+++ b/project.clj
@@ -1,27 +1,29 @@
 (defproject com.novemberain/monger "1.0.0-SNAPSHOT"
   :description "Monger is an experimental idiomatic Clojure wrapper around MongoDB Java driver"
-  :license { :name "Eclipse Public License" }
-  :mailing-list {:name "clojure-monger"
-                 :archive "https://groups.google.com/group/clojure-monger"
-                 :post "clojure-monger@googlegroups.com"}
-  :repositories { "sonatype"
-                  {:url "http://oss.sonatype.org/content/repositories/releases"
-                   :snapshots false
-                   :releases {:checksum :fail :update :always}
-                   }}
-  :dependencies [[org.clojure/clojure           "1.3.0"]
+  :min-lein-version "2.0.0"
+  :license {:name "Eclipse Public License"}
+  :dependencies [[org.clojure/clojure "1.3.0"]
                  [org.mongodb/mongo-java-driver "2.7.3"]
-                 [com.novemberain/validateur    "1.0.0"]]
-  :multi-deps {
-               "1.4" [[org.clojure/clojure "1.4.0-beta1"]]
-               :all [[org.mongodb/mongo-java-driver "2.7.3"]
-                     [com.novemberain/validateur    "1.0.0"]]
-               }
-  :dev-dependencies [[org.clojure/data.json "0.1.2" :exclusions [org.clojure/clojure]]
-                     [clj-time              "0.3.6" :exclusions [org.clojure/clojure]]
-                     [codox                 "0.3.4" :exclusions [org.clojure/clojure]]
-                     [org.clojure/tools.cli "0.2.1" :exclusions [org.clojure/clojure]]]
-  :dev-resources-path "test/resources"
-  :warn-on-reflection true
-  :codox { :exclude [monger.internal.pagination] }
-  :test-selectors   {:focus          (fn [v] (:focus v))})
+                 [com.novemberain/validateur "1.0.0"]]
+  :test-selectors {:focus (fn [v] (:focus v))}
+  :codox {:exclude [monger.internal.pagination]}
+  :mailing-list {:name "clojure-monger",
+                 :archive "https://groups.google.com/group/clojure-monger",
+                 :post "clojure-monger@googlegroups.com"}
+  :profiles {:all {:dependencies [[org.mongodb/mongo-java-driver "2.7.3"]
+                                  [com.novemberain/validateur "1.0.0"]]},
+             :1.4 {:resource-paths ["test/resources"],
+                   :dependencies [[org.clojure/clojure "1.4.0-beta4"]
+                                  [org.clojure/data.json "0.1.2" :exclusions [org.clojure/clojure]]
+                                  [clj-time "0.3.6"              :exclusions [org.clojure/clojure]]
+                                  [codox "0.3.4"                 :exclusions [org.clojure/clojure]]
+                                  [org.clojure/tools.cli "0.2.1" :exclusions [org.clojure/clojure]]]},
+             :dev {:resource-paths ["test/resources"],
+                   :dependencies  [[org.clojure/data.json "0.1.2" :exclusions [org.clojure/clojure]]
+                                   [clj-time "0.3.6"              :exclusions [org.clojure/clojure]]
+                                   [codox "0.3.4"                 :exclusions [org.clojure/clojure]]
+                                   [org.clojure/tools.cli "0.2.1" :exclusions [org.clojure/clojure]]]}}
+  :repositories {"sonatype" {:url "http://oss.sonatype.org/content/repositories/releases",
+                             :snapshots false,
+                             :releases {:checksum :fail, :update :always}}}
+  :warn-on-reflection true)
\ No newline at end of file
diff --git a/test/monger/test/core.clj b/test/monger/test/core.clj
index 12fbfc5..29a5803 100644
--- a/test/monger/test/core.clj
+++ b/test/monger/test/core.clj
@@ -6,6 +6,7 @@
   (:use [clojure.test]
         [monger.core :only [server-address mongo-options]]))
 
+(println (str "Using Clojure version " *clojure-version*))
 (helper/connect!)
 
 (deftest connect-to-mongo-with-default-host-and-port