diff --git a/debian/copyright b/debian/copyright
index 68504d538d87dc180bc3284d853785d9d813af02..b90e75bc4951d609d57e352fc16832da0f50b639 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/
 
 Files: *
 Copyright: