diff --git a/debian/changelog b/debian/changelog
index d503880492296ef9d0e05528c317a247a5b12ab3..b8e9c1f1043708834852cc511e4ffe8817be3cf1 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,7 @@
 python-py-zipkin (0.9.0-3) UNRELEASED; urgency=medium
 
   * d/control: Set Vcs-* to salsa.debian.org
+  * d/copyright: Use https protocol in Format field
 
  -- Ondřej Nový <onovy@debian.org>  Tue, 13 Feb 2018 10:03:47 +0100
 
diff --git a/debian/copyright b/debian/copyright
index 5a988f44877799697cd60f899073c5da62285a5d..bbbb4aaf8f39b4cd8c4e5b9be2e8638bd9a53397 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: py_zipkin
 Upstream-Contact: Yelp, Inc. <opensource+py-zipkin@yelp.com>
 Source: https://github.com/Yelp/py_zipkin