diff --git a/COPYING b/COPYING
index bc08fe2e..281d399f 100644
--- a/COPYING
+++ b/COPYING
@@ -1,7 +1,7 @@
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007 Free Software Foundation, Inc.
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
diff --git a/README.md b/README.md
index 702c77ba..3a8f7c3c 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ After installing Zeal, go to *Tools->Docsets*, select the ones you want, and cli
* [CMake](https://cmake.org/).
* [Qt](https://www.qt.io/) version 5.9.5 or above. Required module: Qt WebEngine Widgets.
-* [libarchive](http://libarchive.org/).
+* [libarchive](https://libarchive.org/).
* [SQLite](https://sqlite.org/).
* X11 platforms only: Qt X11 Extras and `xcb-util-keysyms`.
@@ -79,4 +79,4 @@ If you feel generous and want to show some extra appreciation:
## License
-This software is licensed under the terms of the GNU General Public License version 3 (GPLv3). Full text of the license is available in the [COPYING](https://github.com/zealdocs/zeal/blob/master/COPYING) file and [online](http://opensource.org/licenses/gpl-3.0.html).
+This software is licensed under the terms of the GNU General Public License version 3 (GPLv3). Full text of the license is available in the [COPYING](https://github.com/zealdocs/zeal/blob/master/COPYING) file and [online](https://www.gnu.org/licenses/gpl-3.0.html).
diff --git a/pkg/appimage/appimage-amd64.yml b/pkg/appimage/appimage-amd64.yml
index 6c9a2fe4..a5b729fb 100644
--- a/pkg/appimage/appimage-amd64.yml
+++ b/pkg/appimage/appimage-amd64.yml
@@ -31,7 +31,7 @@ AppDir:
- sourceline: "deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ bionic main restricted universe multiverse"
- sourceline: "deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ bionic-updates main restricted universe multiverse"
- sourceline: "deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse"
- key_url: "http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3b4fe6acc0b21f32"
+ key_url: "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3b4fe6acc0b21f32"
include:
# Required Qt packages.
diff --git a/src/libs/browser/settings.cpp b/src/libs/browser/settings.cpp
index 49599edf..7ed2af76 100644
--- a/src/libs/browser/settings.cpp
+++ b/src/libs/browser/settings.cpp
@@ -16,7 +16,7 @@
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
-** along with Zeal. If not, see .
+** along with Zeal. If not, see .
**
****************************************************************************/
diff --git a/src/libs/browser/settings.h b/src/libs/browser/settings.h
index 306025ca..1810d261 100644
--- a/src/libs/browser/settings.h
+++ b/src/libs/browser/settings.h
@@ -16,7 +16,7 @@
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
-** along with Zeal. If not, see .
+** along with Zeal. If not, see .
**
****************************************************************************/
diff --git a/src/libs/browser/webpage.cpp b/src/libs/browser/webpage.cpp
index e45fa79a..6b0a579b 100644
--- a/src/libs/browser/webpage.cpp
+++ b/src/libs/browser/webpage.cpp
@@ -17,7 +17,7 @@
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
-** along with Zeal. If not, see .
+** along with Zeal. If not, see .
**
****************************************************************************/
diff --git a/src/libs/browser/webpage.h b/src/libs/browser/webpage.h
index 195bd586..d7535d0d 100644
--- a/src/libs/browser/webpage.h
+++ b/src/libs/browser/webpage.h
@@ -17,7 +17,7 @@
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
-** along with Zeal. If not, see .
+** along with Zeal. If not, see .
**
****************************************************************************/
diff --git a/src/libs/core/httpserver.cpp b/src/libs/core/httpserver.cpp
index d846be64..cd5b2b63 100644
--- a/src/libs/core/httpserver.cpp
+++ b/src/libs/core/httpserver.cpp
@@ -16,7 +16,7 @@
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
-** along with Zeal. If not, see .
+** along with Zeal. If not, see .
**
****************************************************************************/
diff --git a/src/libs/core/httpserver.h b/src/libs/core/httpserver.h
index 112b6342..b48f6927 100644
--- a/src/libs/core/httpserver.h
+++ b/src/libs/core/httpserver.h
@@ -16,7 +16,7 @@
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
-** along with Zeal. If not, see .
+** along with Zeal. If not, see .
**
****************************************************************************/
diff --git a/src/libs/registry/cancellationtoken.h b/src/libs/registry/cancellationtoken.h
index f39fcb56..09076204 100644
--- a/src/libs/registry/cancellationtoken.h
+++ b/src/libs/registry/cancellationtoken.h
@@ -16,7 +16,7 @@
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
-** along with Zeal. If not, see .
+** along with Zeal. If not, see .
**
****************************************************************************/
diff --git a/src/libs/ui/aboutdialog.ui b/src/libs/ui/aboutdialog.ui
index c3079ce3..987d55d4 100644
--- a/src/libs/ui/aboutdialog.ui
+++ b/src/libs/ui/aboutdialog.ui
@@ -113,7 +113,7 @@ p, li { white-space: pre-wrap; }
<p style=" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;">Zeal heavily relies on other open source software listed below.</span></p>
<p style=" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:600;">Bulma</span><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"> - </span><a href="https://bulma.io/"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; text-decoration: underline; color:#007af4;">bulma.io</span></a><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"><br />License: MIT License</span></p>
<p style=" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:600;">cpp-httplib</span><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"> - </span><a href="https://github.com/yhirose/cpp-httplib"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; text-decoration: underline; color:#007af4;">github.com/yhirose/cpp-httplib</span></a><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"><br />License: MIT License</span></p>
-<p style=" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:600;">Font Awesome</span><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"> - </span><a href="http://fontawesome.io/"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; text-decoration: underline; color:#007af4;">fontawesome.io</span></a><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"><br />License: SIL OFL 1.1 (font), MIT License (css)</span></p>
+<p style=" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:600;">Font Awesome</span><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"> - </span><a href="https://fontawesome.io/"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; text-decoration: underline; color:#007af4;">fontawesome.io</span></a><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"><br />License: SIL OFL 1.1 (font), MIT License (css)</span></p>
<p style=" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:600;">libarchive</span><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"> - </span><a href="https://www.libarchive.org/"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; text-decoration: underline; color:#007af4;">www.libarchive.org</span></a><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"><br />License: Simplified BSD License</span></p>
<p style=" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:600;">LibQxt</span><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"> - </span><a href="https://bitbucket.org/libqxt/libqxt"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; text-decoration: underline; color:#007af4;">bitbucket.org/libqxt/libqxt</span></a><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"><br />License: New BSD License</span></p>
<p style=" margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:600;">Qt</span><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"> - </span><a href="https://www.qt.io/"><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt; text-decoration: underline; color:#007af4;">www.qt.io</span></a><span style=" font-family:'MS Shell Dlg 2'; font-size:8.25pt;"><br />License: GNU LGPL version 3</span></p>