diff --git a/src/jiffy.app.src b/src/jiffy.app.src
index c48ffe7..fa19713 100644
--- a/src/jiffy.app.src
+++ b/src/jiffy.app.src
@@ -1,6 +1,6 @@
 {application, jiffy, [
     {description, "JSON Decoder/Encoder."},
-    {vsn, "0.15.2"},
+    {vsn, "1.0.0"},
     {registered, []},
     {applications, [kernel, stdlib, xmerl]},
     {maintainers, ["Paul J. Davis"]},