diff --git a/CMake/Findsodium.cmake b/CMake/Findsodium.cmake
index 3af0c7b16..2e6d59a20 100644
--- a/CMake/Findsodium.cmake
+++ b/CMake/Findsodium.cmake
@@ -7,7 +7,7 @@
 # You should have received a copy of the CC0 Public Domain Dedication
 # along with this software. If not, see
 #
-#     http://creativecommons.org/publicdomain/zero/1.0/
+#     https://creativecommons.org/publicdomain/zero/1.0/
 #
 ########################################################################
 # Tries to find the local libsodium installation.
diff --git a/Packaging/resources/LICENSE.CharisSILB.txt b/Packaging/resources/LICENSE.CharisSILB.txt
index 52f437d24..b1b503959 100644
--- a/Packaging/resources/LICENSE.CharisSILB.txt
+++ b/Packaging/resources/LICENSE.CharisSILB.txt
@@ -1,9 +1,9 @@
-This Font Software is Copyright (c) 1997-2009, SIL International (http://scripts.sil.org/)
+This Font Software is Copyright (c) 1997-2009, SIL International (https://scripts.sil.org/)
 with Reserved Font Names "Charis" and "SIL".
 
 This Font Software is licensed under the SIL Open Font License, Version 1.1.
 This license is copied below, and is also available with a FAQ at:
-http://scripts.sil.org/OFL
+https://scripts.sil.org/OFL
 
 
 -----------------------------------------------------------
diff --git a/Packaging/resources/README-SDL.txt b/Packaging/resources/README-SDL.txt
index 8d92955a9..e3401eddb 100644
--- a/Packaging/resources/README-SDL.txt
+++ b/Packaging/resources/README-SDL.txt
@@ -9,5 +9,5 @@ The Simple DirectMedia Layer library source code is available from:
 https://www.libsdl.org/
 
 This library is distributed under the terms of the zlib license:
-http://www.zlib.net/zlib_license.html
+https://www.zlib.net/zlib_license.html
 
diff --git a/Source/utils/sdl2_to_1_2_backports.cpp b/Source/utils/sdl2_to_1_2_backports.cpp
index 1ce9ebcee..3cc452d41 100644
--- a/Source/utils/sdl2_to_1_2_backports.cpp
+++ b/Source/utils/sdl2_to_1_2_backports.cpp
@@ -620,7 +620,7 @@ char *SDL_GetPrefPath(const char *org, const char *app)
      *  This isn't strictly correct, but the results are relatively sane
      *  in any case.
      *
-     * http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
+     * https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
      */
 	const char *envr = SDL_getenv("XDG_DATA_HOME");
 	const char *append;
diff --git a/docs/BACKGROUND.md b/docs/BACKGROUND.md
index 33db27d9a..3aa97d5d9 100644
--- a/docs/BACKGROUND.md
+++ b/docs/BACKGROUND.md
@@ -74,7 +74,7 @@ P.P.P.S. you can also view our presentation slides here: https://docs.google.com
 
 [3]: https://github.com/diasurgical/devilution/issues/111#issuecomment-426059660
 
-[4]: http://bytepointer.com/articles/the_microsoft_rich_header.htm
+[4]: https://bytepointer.com/articles/the_microsoft_rich_header.htm
 
 [5]: https://github.com/diasurgical/devilution/issues/111
 
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index f460cf2b9..cb272e8f2 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,8 +1,8 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
-The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
-and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## DevilutionX 1.2.1
 ### Bugfixes
@@ -436,7 +436,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - An older and more original PSX symbol file is discovered
 
 ### October 1, 2018
-- Compiler version is confirmed to be correct by discovery of the [Rich header](http://bytepointer.com/articles/the_microsoft_rich_header.htm)
+- Compiler version is confirmed to be correct by discovery of the [Rich header](https://bytepointer.com/articles/the_microsoft_rich_header.htm)
 
 ### September 18, 2018
 - Merge nightly back in to devilution