diff --git a/debian/changelog b/debian/changelog
index fdefee3..398fd33 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -2,6 +2,9 @@
 
   * Bump Policy Standards-Version to 4.2.1 (no changes needed)
   * Switch to debhelper compat level v11
+  * d/watch:
+    - Set to version=4
+    - Use https for URL
 
  -- Manuel A. Fernandez Montecelo <mafm@debian.org>  Fri, 19 Oct 2018 23:35:01 +0200
 
diff --git a/debian/watch b/debian/watch
index 4bc124b..239065d 100644
--- a/debian/watch
+++ b/debian/watch
@@ -1,3 +1,3 @@
-version=3
+version=4
 opts=dversionmangle=s/.dfsg\d+$// \
-  http://www.libsdl.org/projects/SDL_mixer/release/SDL2_mixer-([\d.]+)\.tar\.(?:gz|bz2|xz|lzma)
+  https://www.libsdl.org/projects/SDL_mixer/release/SDL2_mixer-([\d.]+)\.tar\.(?:gz|bz2|xz|lzma)