Moustache Modern syntax fails with Clojure 1.5.1

[mtopolnik]

=> (require ['net.cgrand.moustache :refer ['app]])
nil
=> (app :middlewares [] ["a"] "a here" ["b"] "b here")
ClassCastException clojure.lang.PersistentVector cannot be cast to clojure.lang.Named
    clojure.core/name (core.clj:1505)
    net.cgrand.moustache/method-not-allowed-form/fn--1691 (moustache.clj:132)
    clojure.core/map/fn--4207 (core.clj:2487)
    clojure.lang.LazySeq.sval (LazySeq.java:42)
    clojure.lang.LazySeq.seq (LazySeq.java:60)
    clojure.lang.RT.seq (RT.java:484)
    clojure.core/seq (core.clj:133)
    clojure.core/interleave/fn--4525 (core.clj:3901)
    clojure.lang.LazySeq.sval (LazySeq.java:42)
    clojure.lang.LazySeq.seq (LazySeq.java:60)
    clojure.lang.RT.seq (RT.java:484)
    clojure.core/seq (core.clj:133)
nil

In project.clj:

:dependencies [[org.clojure/clojure "1.5.1"]
                 [org.clojure/core.incubator "0.1.3"]
                 [org.clojure/data.json "0.1.1"]
                 [net.cgrand/moustache "1.2.0-alpha2"]
                 [ring/ring-core "1.1.0"]
                 [ring/ring-json "0.2.0"]
                 [ring/ring-jetty-adapter "0.3.10"]]