diff --git a/flake.lock b/flake.lock
index 5473056..df11167 100644
--- a/flake.lock
+++ b/flake.lock
@@ -167,12 +167,12 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1705856552,
-        "narHash": "sha256-JXfnuEf5Yd6bhMs/uvM67/joxYKoysyE3M2k6T3eWbg=",
-        "rev": "612f97239e2cc474c13c9dafa0df378058c5ad8d",
-        "revCount": 574351,
+        "lastModified": 1706191920,
+        "narHash": "sha256-eLihrZAPZX0R6RyM5fYAWeKVNuQPYjAkCUBr+JNvtdE=",
+        "rev": "ae5c332cbb5827f6b1f02572496b141021de335f",
+        "revCount": 576254,
         "type": "tarball",
-        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.574351%2Brev-612f97239e2cc474c13c9dafa0df378058c5ad8d/018d3085-aff0-7a0b-ab80-1a9c414de8cd/source.tar.gz"
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.576254%2Brev-ae5c332cbb5827f6b1f02572496b141021de335f/018d4821-953a-717b-b0f9-5a5ba6f94933/source.tar.gz"
       },
       "original": {
         "type": "tarball",
diff --git a/nix/update.sh b/nix/update.sh
index 8fb5f55..815096e 100755
--- a/nix/update.sh
+++ b/nix/update.sh
@@ -22,21 +22,26 @@ apply_home_manager() {
 }
 
 OPTIND=1
-while getopts dha opt; do
+while getopts ':dha' opt; do
 	case $opt in
 	a)
 		apply_home_manager
+		exit
 		;;
 	d)
 		do_devenv
+		exit
 		;;
 	h)
 		update_home_manager
 		apply_home_manager
+		exit
 		;;
-	*)
-		"Ignoring unknown option. Please only pass -a, -d, or -h"
+	?)
+		echo "Ignoring unknown option. Please only pass -a, -d, or -h"
 		;;
 	esac
 done
 shift "$((OPTIND - 1))"
+# Fallthrough event
+echo "No argument provided. Please pass -a, -d, or -h"