diff --git a/install.sh b/install.sh
index 2d3082e..642a2d3 100755
--- a/install.sh
+++ b/install.sh
@@ -54,9 +54,9 @@ function create_ssh_config {
         echo "Enter ssh-key comment (leave empty for default: user@host)"
         read comment
         if [[ $comment ]]; then
-            ssh-keygen -t rsa -b 4096 -C $comment
+            ssh-keygen -t ed25519 -C "$comment"
         else
-            ssh-keygen -t rsa -b 4096
+            ssh-keygen -t ed25519
         fi
         # fix permissions
         chmod 0700 "$HOME/.ssh"