diff --git a/README b/README
--- a/README
+++ b/README
@@ -1,1 +1,8 @@
 Various https://en.wikipedia.org/wiki/Line_drawing_algorithm
+
+Contributing
+------------
+
+browse repo: http://www.ariis.it/static/repos/stagit/line-drawing/
+Upload your modifications somewhere and send me an email (<fa-ml@ariis.it>).
+
diff --git a/changes.txt b/changes.txt
--- a/changes.txt
+++ b/changes.txt
@@ -1,3 +1,9 @@
+0.4.0.2
+-------
+
+- Move to stagit repository.
+- Released dom 19 mar 2023, 10:47:39
+
 0.4.0.0
 -------
 
diff --git a/line-drawing.cabal b/line-drawing.cabal
--- a/line-drawing.cabal
+++ b/line-drawing.cabal
@@ -1,6 +1,6 @@
 cabal-version:       >=1.10
 name:                line-drawing
-version:             0.4.0.1
+version:             0.4.0.2
 synopsis:            raster line drawing
 description:         Line drawing algorithms to approximate a
                      line segment on discrete graphical media (raster).
@@ -10,6 +10,7 @@
 license:             BSD3
 license-file:        LICENSE
 author:              Francesco Ariis
+homepage:            http://www.ariis.it/static/articles/libraries/page.html#line-drawing
 maintainer:          fa-ml@ariis.it
 copyright:           © 2019 Francesco Ariis
 category:            Graphics
@@ -38,4 +39,4 @@
 
 source-repository head
     type:     git
-    location: https://gitlab.com/fffaaa/line-drawing
+    location: http://www.ariis.it/static/repos/stagit/line-drawing/
