diff --git a/update-all.sh b/update-all.sh
new file mode 100644
index 0000000..e7738fc
--- /dev/null
+++ b/update-all.sh
@@ -0,0 +1,10 @@
+set -e
+
+for d in ./*/ ; do
+    echo "== updating $d == "
+    pushd "$d"
+
+    nix flake update
+
+    popd
+done