diff --git a/Lib/pathlib.py b/Lib/pathlib.py
index cf40370..94e079f 100644
--- a/Lib/pathlib.py
+++ b/Lib/pathlib.py
@@ -1295,7 +1295,7 @@ def is_dir(self):
             if not _ignore_error(e):
                 raise
             # Path doesn't exist or is a broken symlink
-            # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
+            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
             return False
         except ValueError:
             # Non-encodable path
@@ -1312,7 +1312,7 @@ def is_file(self):
             if not _ignore_error(e):
                 raise
             # Path doesn't exist or is a broken symlink
-            # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
+            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
             return False
         except ValueError:
             # Non-encodable path
@@ -1363,7 +1363,7 @@ def is_block_device(self):
             if not _ignore_error(e):
                 raise
             # Path doesn't exist or is a broken symlink
-            # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
+            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
             return False
         except ValueError:
             # Non-encodable path
@@ -1379,7 +1379,7 @@ def is_char_device(self):
             if not _ignore_error(e):
                 raise
             # Path doesn't exist or is a broken symlink
-            # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
+            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
             return False
         except ValueError:
             # Non-encodable path
@@ -1395,7 +1395,7 @@ def is_fifo(self):
             if not _ignore_error(e):
                 raise
             # Path doesn't exist or is a broken symlink
-            # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
+            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
             return False
         except ValueError:
             # Non-encodable path
@@ -1411,7 +1411,7 @@ def is_socket(self):
             if not _ignore_error(e):
                 raise
             # Path doesn't exist or is a broken symlink
-            # (see https://bitbucket.org/pitrou/pathlib/issue/12/)
+            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
             return False
         except ValueError:
             # Non-encodable path