diff --git a/debian/control b/debian/control
index 86c48af..e5eafec 100644
--- a/debian/control
+++ b/debian/control
@@ -26,7 +26,7 @@ Description: Library for Public Suffix List (development headers)
  'super domain' certificates, for domain highlighting purposes
  sorting domain lists by site and more.
  .
- Please see http://publicsuffix.org for more detailed information.
+ Please see https://publicsuffix.org for more detailed information.
  .
  This package contains development header files and documentation for
  developers.
@@ -42,7 +42,7 @@ Description: Library for Public Suffix List (shared libraries)
  'super domain' certificates, for domain highlighting purposes
  sorting domain lists by site and more.
  .
- Please see http://publicsuffix.org for more detailed information.
+ Please see https://publicsuffix.org for more detailed information.
  .
  This package contains runtime libraries.
 
@@ -57,7 +57,7 @@ Description: Explore the Public Suffix List
  'super domain' certificates, for domain highlighting purposes
  sorting domain lists by site and more.
  .
- Please see http://publicsuffix.org for more detailed information.
+ Please see https://publicsuffix.org for more detailed information.
  .
  This package contains a commandline tool to explore the Public Suffix
  List.
@@ -74,6 +74,6 @@ Description: Library for the Public Suffix List (debug symbols)
  'super domain' certificates, for domain highlighting purposes
  sorting domain lists by site and more.
  .
- Please see http://publicsuffix.org for more detailed information.
+ Please see https://publicsuffix.org for more detailed information.
  .
  This package contains debug symbols for libpsl.
diff --git a/debian/copyright b/debian/copyright
index 0f36649..4e48d9a 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: libpsl
 Source: https://github.com/rockdaboot/libpsl