diff --git a/docs/Getting Started/Ubuntu/Ubuntu 18.04 Root on ZFS.rst b/docs/Getting Started/Ubuntu/Ubuntu 18.04 Root on ZFS.rst
index ea9a714..5d16b22 100644
--- a/docs/Getting Started/Ubuntu/Ubuntu 18.04 Root on ZFS.rst	
+++ b/docs/Getting Started/Ubuntu/Ubuntu 18.04 Root on ZFS.rst	
@@ -26,7 +26,7 @@ System Requirements
 ~~~~~~~~~~~~~~~~~~~
 
 - `Ubuntu 18.04.3 ("Bionic") Desktop
-  CD <http://releases.ubuntu.com/18.04.3/ubuntu-18.04.3-desktop-amd64.iso>`__
+  CD <https://releases.ubuntu.com/18.04.3/ubuntu-18.04.3-desktop-amd64.iso>`__
   (*not* any server images)
 - Installing on a drive which presents 4 KiB logical sectors (a “4Kn”
   drive) only works with UEFI booting. This not unique to ZFS. `GRUB
diff --git a/docs/Getting Started/Ubuntu/Ubuntu 20.04 Root on ZFS.rst b/docs/Getting Started/Ubuntu/Ubuntu 20.04 Root on ZFS.rst
index cc059ee..18f8518 100644
--- a/docs/Getting Started/Ubuntu/Ubuntu 20.04 Root on ZFS.rst	
+++ b/docs/Getting Started/Ubuntu/Ubuntu 20.04 Root on ZFS.rst	
@@ -161,7 +161,7 @@ System Requirements
 ~~~~~~~~~~~~~~~~~~~
 
 - `Ubuntu 20.04 (“Focal”) Desktop CD
-  <http://releases.ubuntu.com/20.04/ubuntu-20.04-desktop-amd64.iso>`__
+  <https://releases.ubuntu.com/20.04/ubuntu-20.04-desktop-amd64.iso>`__
   (*not* any server images)
 - Installing on a drive which presents 4 KiB logical sectors (a “4Kn” drive)
   only works with UEFI booting. This not unique to ZFS. `GRUB does not and