diff --git a/extensions/markedit-bidirectional-preview-sync.json b/extensions/markedit-bidirectional-preview-sync.json
new file mode 100644
index 0000000..c328a16
--- /dev/null
+++ b/extensions/markedit-bidirectional-preview-sync.json
@@ -0,0 +1,16 @@
+{
+  "$schema": "https://github.com/MarkEdit-app/extensions/raw/refs/heads/main/schemas/extension.schema.json",
+  "id": "markedit-bidirectional-preview-sync",
+  "name": "Bidirectional Preview Sync",
+  "description": "Keeps the scroll position of MarkEdit's editor and preview panes synced in both directions.",
+  "author": "Nigelw",
+  "homepage": "https://github.com/Nigelw/MarkEdit-bidirectional-preview-sync",
+  "versions": [
+    {
+      "version": "1.1.3",
+      "url": "https://raw.githubusercontent.com/Nigelw/MarkEdit-bidirectional-preview-sync/v1.1.3/dist/markedit-bidirectional-preview-sync.js",
+      "sha256": "a5d6609af7f6a4f42596ca9849c6689749fe5f74eca57f3509b6d3e41f2984c7",
+      "notes": "Improved synchronization when an open document is updated externally."
+    }
+  ]
+}