Increase version to 0.5.1
diff --git a/src/meck.app.src b/src/meck.app.src
index 87e2d92..ffb8c54 100644
--- a/src/meck.app.src
+++ b/src/meck.app.src
@@ -1,7 +1,7 @@
 %% -*- mode: erlang; -*-
 {application, meck,
  [{description, "A mocking framework for Erlang"},
-  {vsn, "0.1"}, 
+  {vsn, "0.5.1"},
   {modules, []},
   {registered, []},
   {applications, [kernel, stdlib]},