diff --git a/debian/changelog b/debian/changelog
index 6c7fd36..42af66e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,7 @@
 libgeotiff (1.6.0-2) UNRELEASED; urgency=medium
 
   * Drop override for mailing-list-obsolete-in-debian-infrastructure.
+  * Bump watch file version to 4.
 
  -- Bas Couwenberg <sebastic@debian.org>  Mon, 27 Apr 2020 10:45:56 +0200
 
diff --git a/debian/watch b/debian/watch
index b54873b..c4a214b 100644
--- a/debian/watch
+++ b/debian/watch
@@ -1,4 +1,4 @@
-version=3
+version=4
 opts=\
 dversionmangle=s/\+(debian|dfsg|ds|deb)\d*$//,\
 uversionmangle=s/(\d)[_\.\-\+]?((RC|rc|pre|dev|beta|alpha)\d*)$/$1~$2/;s/RC/rc/ \