diff --git a/config b/config
index 50905b9..7313f32 100644
--- a/config
+++ b/config
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-GRUB_BTRFS_VERSION=4.12-master-2022-12-04T21:11:00+00:00
+GRUB_BTRFS_VERSION=4.12-master-2022-12-07T14:01:10+00:00
 
 # Disable grub-btrfs.
 # Default: "false"
diff --git a/grub-btrfsd b/grub-btrfsd
index 198b0ad..1c9ec82 100755
--- a/grub-btrfsd
+++ b/grub-btrfsd
@@ -1,4 +1,4 @@
-#!/usr/bin/env sh
+#!/usr/bin/env bash
 # Copyright 2022 Pascal Jaeger
 # Distributed under the terms of the GNU General Public License v3
 # Update GRUB when new BTRFS snapshots are created.