diff --git a/Installation.md b/Installation.md
index 8fcdba3..e15db34 100644
--- a/Installation.md
+++ b/Installation.md
@@ -130,7 +130,25 @@ $ docker volume rm invidious_postgresdata
 
 Arch Linux
 ```bash
-sudo pacman -S base-devel shards crystal librsvg postgresql
+sudo pacman -S base-devel shards librsvg postgresql
+
+# Invidious depends on crystal 0.36.1-1, so you either have to downgrade Crystal or install it from the archive.
+
+# Downgrade using the `downgrade` script from the AUR ( https://aur.archlinux.org/packages/downgrade/ ):
+# A basic understanding of the AUR is required, and the installation of `yay` (or `paru`) has to be done
+sudo pacman -S crystal
+yay -S downgrade (or `paru -S downgrade`)
+sudo downgrade crystal
+# > Select 0.36.1-1
+# When asked to add crystal to the ignore list (so it won't be updated in the future), choose "yes".
+
+# Install from the archive:
+# Checking the package's signature is optional, but is a recommended practice.
+cd ~/Downloads
+wget https://archive.archlinux.org/packages/c/crystal/crystal-0.36.1-1-x86_64.pkg.tar.zst
+wget https://archive.archlinux.org/packages/c/crystal/crystal-0.36.1-1-x86_64.pkg.tar.zst.sig
+gpg2 --homedir /etc/pacman.d/gnupg --verify crystal-0.36.1-1-x86_64.pkg.tar.zst.sig crystal-0.36.1-1-x86_64.pkg.tar.zst
+sudo pacman -U crystal-0.36.1-1-x86_64.pkg.tar.zst
 ```
 
 Ubuntu or Debian