diff --git a/docs/content/docs/references/logo.md b/docs/content/docs/references/logo.md
index 4e48be479..568aa6226 100644
--- a/docs/content/docs/references/logo.md
+++ b/docs/content/docs/references/logo.md
@@ -105,7 +105,7 @@ Abril is a bold display typeface created by Veronika Burian & José Scaglione (a
 Note: For normal page copy please pair a more legible typeface like [Open Sans].
 
 [Abril]: https://fonts.google.com/specimen/Abril+Fatface
-[TypeTogether]: http://www.type-together.com/
+[TypeTogether]: https://www.type-together.com/
 [OFL]: https://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=OFL
 [Open Sans]: https://fonts.google.com/specimen/Open+Sans
 
diff --git a/docs/content/slides/pack-your-bags-msp/index.md b/docs/content/slides/pack-your-bags-msp/index.md
index 4e780948e..b6f3774a1 100644
--- a/docs/content/slides/pack-your-bags-msp/index.md
+++ b/docs/content/slides/pack-your-bags-msp/index.md
@@ -209,7 +209,7 @@ exclude: true
   ![you fight for the users](/images/pack-your-bags/Spongebob-patrick-crying.jpg)
 ]
 
-.footnote[http://vignette3.wikia.nocookie.net/spongebob/images/f/f0/Spongebob-patrick-crying.jpg/revision/latest?cb=20140713205315]
+.footnote[https://vignette3.wikia.nocookie.net/spongebob/images/f/f0/Spongebob-patrick-crying.jpg/revision/latest?cb=20140713205315]
 
 ---
 class: center, middle
@@ -294,7 +294,7 @@ class: center, middle
   ![workflow](/images/pack-your-bags/the-workflow.png) ![magic](/images/pack-your-bags/magic.gif)
 ]
 
-.footnote[_http://www.reactiongifs.com/magic-3_]
+.footnote[_https://www.reactiongifs.com/magic-3_]
 
 ---
 ## Try it out: Install a bundle
diff --git a/docs/content/slides/pack-your-bags/index.md b/docs/content/slides/pack-your-bags/index.md
index 0d4b1c72a..efc9e9c86 100644
--- a/docs/content/slides/pack-your-bags/index.md
+++ b/docs/content/slides/pack-your-bags/index.md
@@ -190,7 +190,7 @@ class: center, middle
   ![you fight for the users](/images/pack-your-bags/Spongebob-patrick-crying.jpg)
 ]
 
-.footnote[http://vignette3.wikia.nocookie.net/spongebob/images/f/f0/Spongebob-patrick-crying.jpg/revision/latest?cb=20140713205315]
+.footnote[https://vignette3.wikia.nocookie.net/spongebob/images/f/f0/Spongebob-patrick-crying.jpg/revision/latest?cb=20140713205315]
 
 ---
 class: center, middle
@@ -290,7 +290,7 @@ class: center, middle
   ![workflow](/images/pack-your-bags/the-workflow.png) ![magic](/images/pack-your-bags/magic.gif)
 ]
 
-.footnote[_http://www.reactiongifs.com/magic-3_]
+.footnote[_https://www.reactiongifs.com/magic-3_]
 
 ---
 ## Try it out: Install a bundle