diff --git a/debian/bin/abiupdate.py b/debian/bin/abiupdate.py
index 74d43c6f6..635ff034e 100755
--- a/debian/bin/abiupdate.py
+++ b/debian/bin/abiupdate.py
@@ -13,11 +13,11 @@ from debian_linux.abi import Symbols
 from debian_linux.config import ConfigCoreDump
 from debian_linux.debian import Changelog, VersionLinux
 
-default_url_base = "http://deb.debian.org/debian/"
-default_url_base_incoming = "http://incoming.debian.org/debian-buildd/"
-default_url_base_ports = "http://ftp.ports.debian.org/debian-ports/"
-default_url_base_ports_incoming = "http://incoming.ports.debian.org/"
-default_url_base_security = "http://security.debian.org/"
+default_url_base = "https://deb.debian.org/debian/"
+default_url_base_incoming = "https://incoming.debian.org/debian-buildd/"
+default_url_base_ports = "https://deb.debian.org/debian-ports/"
+default_url_base_ports_incoming = "https://incoming.ports.debian.org/"
+default_url_base_security = "https://deb.debian.org/debian-security/"
 
 
 class url_debian_flat(object):
diff --git a/debian/changelog b/debian/changelog
index c11fafe62..24f82809d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -2,6 +2,7 @@ linux (4.19.28-3) UNRELEASED; urgency=medium
 
   * debian/bin/abiupdate.py: Automatically select the correct archive to fetch
     from
+  * debian/bin/abiupdate.py: Change default URLs to use https: scheme
 
  -- Ben Hutchings <ben@decadent.org.uk>  Mon, 18 Mar 2019 22:50:08 +0000