diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..867e524
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+1.2.0
\ No newline at end of file
diff --git a/src/gen_smtp.app.src b/src/gen_smtp.app.src
index 544344c..62232b8 100644
--- a/src/gen_smtp.app.src
+++ b/src/gen_smtp.app.src
@@ -1,6 +1,6 @@
 {application, gen_smtp, [
     {description, "The extensible Erlang SMTP client and server library."},
-    {vsn, "1.2.0-dev"},
+    {vsn, "1.2.0"},
     {applications, [kernel, stdlib, crypto, asn1, public_key, ssl, ranch]},
     {registered, []},
     {licenses, ["BSD-2-Clause"]},