Prepare for next development iteration
diff --git a/CHANGELOG b/CHANGELOG
index 135816d..a4d325c 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+1.5.8 (Pending)
+
 1.5.7 (2019-02-16)
 * Fixed:  The fix that allowed special characters in usernames and passwords was only partially applied
           in the `1.5.6` release. The complete fix that correctly decoded usernames and passwords before
diff --git a/lib/buildr/version.rb b/lib/buildr/version.rb
index 9147037..1b68d1c 100644
--- a/lib/buildr/version.rb
+++ b/lib/buildr/version.rb
@@ -14,5 +14,5 @@
 # the License.
 
 module Buildr #:nodoc:
-  VERSION = '1.5.7'.freeze
+  VERSION = '1.5.8.dev'.freeze
 end