diff --git a/nixos/expire-home-manager-generations.sh b/nixos/expire-home-manager-generations.sh
new file mode 100755
index 00000000..a0a65561
--- /dev/null
+++ b/nixos/expire-home-manager-generations.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+users=("root" "imalison" "kat" "dean" "alex" "will" "mike")
+
+for user in "${users[@]}"; do
+    sudo su - $user -c 'home-manager expire-generations -15days'
+done