diff --git a/beets/ui/__init__.py b/beets/ui/__init__.py
index a88ed9aef..aae3a1769 100644
--- a/beets/ui/__init__.py
+++ b/beets/ui/__init__.py
@@ -204,7 +204,7 @@ def input_(prompt=None):
     """
     # raw_input incorrectly sends prompts to stderr, not stdout, so we
     # use print_() explicitly to display prompts.
-    # http://bugs.python.org/issue1927
+    # https://bugs.python.org/issue1927
     if prompt:
         print_(prompt, end=u' ')
 
@@ -929,7 +929,7 @@ class CommonOptionsParser(optparse.OptionParser, object):
 #
 # This is a fairly generic subcommand parser for optparse. It is
 # maintained externally here:
-# http://gist.github.com/462717
+# https://gist.github.com/462717
 # There you will also find a better description of the code and a more
 # succinct example program.
 
diff --git a/beets/util/__init__.py b/beets/util/__init__.py
index e2348cf6e..162502eb1 100644
--- a/beets/util/__init__.py
+++ b/beets/util/__init__.py
@@ -412,7 +412,7 @@ def syspath(path, prefix=True):
             path = path.decode(encoding, 'replace')
 
     # Add the magic prefix if it isn't already there.
-    # http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247.aspx
+    # https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247.aspx
     if prefix and not path.startswith(WINDOWS_MAGIC_PREFIX):
         if path.startswith(u'\\\\'):
             # UNC path. Final path should look like \\?\UNC\...
@@ -563,7 +563,7 @@ def unique_path(path):
 # Note: The Windows "reserved characters" are, of course, allowed on
 # Unix. They are forbidden here because they cause problems on Samba
 # shares, which are sufficiently common as to cause frequent problems.
-# http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247.aspx
+# https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247.aspx
 CHAR_REPLACE = [
     (re.compile(r'[\\/]'), u'_'),  # / and \ -- forbidden everywhere.
     (re.compile(r'^\.'), u'_'),  # Leading dot (hidden files on Unix).
diff --git a/beetsplug/spotify.py b/beetsplug/spotify.py
index f6df91bb3..d8d7637d6 100644
--- a/beetsplug/spotify.py
+++ b/beetsplug/spotify.py
@@ -22,7 +22,7 @@ class SpotifyPlugin(BeetsPlugin):
     # Base URLs for the Spotify API
     # Documentation: https://developer.spotify.com/web-api
     oauth_token_url = 'https://accounts.spotify.com/api/token'
-    open_track_url = 'http://open.spotify.com/track/'
+    open_track_url = 'https://open.spotify.com/track/'
     search_url = 'https://api.spotify.com/v1/search'
     album_url = 'https://api.spotify.com/v1/albums/'
     track_url = 'https://api.spotify.com/v1/tracks/'
diff --git a/docs/plugins/smartplaylist.rst b/docs/plugins/smartplaylist.rst
index 8ccbd0091..e68217657 100644
--- a/docs/plugins/smartplaylist.rst
+++ b/docs/plugins/smartplaylist.rst
@@ -5,7 +5,7 @@ Smart Playlist Plugin
 beets queries every time your library changes. This plugin is specifically
 created to work well with `MPD's`_ playlist functionality.
 
-.. _MPD's: http://www.musicpd.org/
+.. _MPD's: https://www.musicpd.org/
 
 To use it, enable the ``smartplaylist`` plugin in your configuration
 (see :ref:`using-plugins`).
diff --git a/docs/plugins/web.rst b/docs/plugins/web.rst
index d3ae668ce..d416b1b7d 100644
--- a/docs/plugins/web.rst
+++ b/docs/plugins/web.rst
@@ -90,7 +90,7 @@ for unsupported formats/browsers. There are a number of options for this:
 
 .. _audio.js: https://kolber.github.io/audiojs/
 .. _html5media: https://html5media.info/
-.. _MediaElement.js: http://mediaelementjs.com/
+.. _MediaElement.js: https://mediaelementjs.com/
 
 .. _web-cors:
 
diff --git a/test/test_mb.py b/test/test_mb.py
index d5cb7c468..de1ffd9a7 100644
--- a/test/test_mb.py
+++ b/test/test_mb.py
@@ -459,7 +459,7 @@ class ParseIDTest(_common.TestCase):
 
     def test_parse_id_url_finds_id(self):
         id_string = "28e32c71-1450-463e-92bf-e0a46446fc11"
-        id_url = "http://musicbrainz.org/entity/%s" % id_string
+        id_url = "https://musicbrainz.org/entity/%s" % id_string
         out = mb._parse_id(id_url)
         self.assertEqual(out, id_string)