diff --git a/project.clj b/project.clj
index 9084f06..2f5ffb5 100644
--- a/project.clj
+++ b/project.clj
@@ -14,8 +14,8 @@
 
   :dependencies
   [[org.clojure/clojure      "1.5.1"]
-   [org.clojure/tools.reader "0.10.0"]
-   [com.taoensso/encore      "2.89.0"]
+   [org.clojure/tools.reader "1.1.1"]
+   [com.taoensso/encore      "2.93.0"]
    [org.iq80.snappy/snappy   "0.4"]
    [org.tukaani/xz           "1.6"]
    [net.jpountz.lz4/lz4      "1.3"]]
@@ -27,15 +27,15 @@
    :1.6  {:dependencies [[org.clojure/clojure "1.6.0"]]}
    :1.7  {:dependencies [[org.clojure/clojure "1.7.0"]]}
    :1.8  {:dependencies [[org.clojure/clojure "1.8.0"]]}
-   :1.9  {:dependencies [[org.clojure/clojure "1.9.0-alpha10"]]}
+   :1.9  {:dependencies [[org.clojure/clojure "1.9.0"]]}
    :test {:jvm-opts     ["-Xms1024m" "-Xmx2048m"]
           :dependencies [[org.clojure/test.check        "0.9.0"]
                          [org.clojure/data.fressian     "0.2.1"]
-                         [org.xerial.snappy/snappy-java "1.1.2.6"]]}
+                         [org.xerial.snappy/snappy-java "1.1.7.1"]]}
    :dev [:1.9 :test :server-jvm
          {:plugins
-          [[lein-pprint  "1.1.2"]
-           [lein-ancient "0.6.10"]
+          [[lein-pprint  "1.2.0"]
+           [lein-ancient "0.6.15"]
            [lein-codox   "0.10.3"]]}]}
 
   :test-paths ["test" "src"]