diff --git a/debian/changelog b/debian/changelog
index bb287c6..036be18 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+minetest-mod-throwing-arrows (1.1-3) UNRELEASED; urgency=medium
+
+  * Use secure copyright file specification URI.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Wed, 23 Jun 2021 06:09:52 -0000
+
 minetest-mod-throwing-arrows (1.1-2) unstable; urgency=medium
 
   * Re-upload as source-only so it migrates to testing.
diff --git a/debian/copyright b/debian/copyright
index 0fe4e8b..2227c8f 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -1,4 +1,4 @@
-Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Upstream-Name: throwing_arrows
 Homepage: https://github.com/minetest-mods/throwing_arrows