diff --git a/flake.nix b/flake.nix
index a8272ec..2c63861 100644
--- a/flake.nix
+++ b/flake.nix
@@ -100,6 +100,6 @@
         packages.semeru-stable = self.packages.${system}.semeru.stable;
         packages.semeru-lts = self.packages.${system}.semeru.lts;
 
-        defaultPackage = self.packages.${system}.stable;
+        defaultPackage = self.packages.${system}.temurin.stable;
       });
 }
diff --git a/update.sh b/update.sh
new file mode 100755
index 0000000..a5ace80
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -exou pipefail
+
+DIRECTORY=$(realpath $(dirname "$0"))
+pushd $DIRECTORY
+
+nix run ./updater > sources.json