diff --git a/bin/lein b/bin/lein
index 0357194d..4013688b 100755
--- a/bin/lein
+++ b/bin/lein
@@ -4,7 +4,7 @@
 # somewhere on your $PATH, like ~/bin. The rest of Leiningen will be
 # installed upon first run into the ~/.lein/self-installs directory.
 
-export LEIN_VERSION="2.1.3"
+export LEIN_VERSION="2.2.0-SNAPSHOT"
 
 case $LEIN_VERSION in
     *SNAPSHOT) SNAPSHOT="YES" ;;
diff --git a/bin/lein-pkg b/bin/lein-pkg
index e73eb668..664ef3ab 100644
--- a/bin/lein-pkg
+++ b/bin/lein-pkg
@@ -4,7 +4,7 @@
 # It has all the cross-platform stuff stripped out as well as the
 # logic for running from a source checkout and self-install/upgrading.
 
-export LEIN_VERSION="2.1.3"
+export LEIN_VERSION="2.2.0-SNAPSHOT"
 
 if [ `whoami` = "root" ] && [ "$LEIN_ROOT" = "" ]; then
     echo "WARNING: You're currently running as root; probably by accident."
diff --git a/bin/lein.bat b/bin/lein.bat
index a9d0f943..d9ac4b1d 100755
--- a/bin/lein.bat
+++ b/bin/lein.bat
@@ -2,7 +2,7 @@
 
 setLocal EnableExtensions EnableDelayedExpansion
 
-set LEIN_VERSION=2.1.3
+set LEIN_VERSION=2.2.0-SNAPSHOT
 
 if "%LEIN_VERSION:~-9%" == "-SNAPSHOT" (
     set SNAPSHOT=YES
diff --git a/leiningen-core/project.clj b/leiningen-core/project.clj
index 62fd153d..3b2bd36e 100644
--- a/leiningen-core/project.clj
+++ b/leiningen-core/project.clj
@@ -1,4 +1,4 @@
-(defproject leiningen-core "2.1.3"
+(defproject leiningen-core "2.2.0-SNAPSHOT"
   :url "https://github.com/technomancy/leiningen"
   :license {:name "Eclipse Public License"
             :url "http://www.eclipse.org/legal/epl-v10.html"}
diff --git a/project.clj b/project.clj
index 62719a30..9f252fb8 100644
--- a/project.clj
+++ b/project.clj
@@ -1,7 +1,7 @@
 ;; This is Leiningen's own project configuration. See doc/TUTORIAL.md
 ;; file as well as sample.project.clj for help writing your own.
 
-(defproject leiningen "2.1.3"
+(defproject leiningen "2.2.0-SNAPSHOT"
   :description "Automate Clojure projects without setting your hair on fire."
   :url "https://github.com/technomancy/leiningen"
   :license {:name "Eclipse Public License"