diff --git a/.gitignore b/.gitignore
index 51613b09..753389d1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,7 @@ node_modules
 .pnp
 .pnp.js
 .pnpm-store
+package-lock.json
 
 # testing
 /coverage
diff --git a/README.md b/README.md
index d3791e26..08648c0a 100644
--- a/README.md
+++ b/README.md
@@ -95,6 +95,9 @@ docker pull docker.umami.is/umami-software/umami:latest
 ---
 
 ## 🔄 Getting Updates
+> [!WARNING]  
+> If you are updating from Umami V2, image "postgresql-latest" is deprecated. You must change it to "latest".
+> e.g., rename `docker.umami.is/umami-software/umami:postgresql-latest` to `docker.umami.is/umami-software/umami:latest`.
 
 To get the latest features, simply do a pull, install any new dependencies, and rebuild:
 
diff --git a/src/components/input/DownloadButton.tsx b/src/components/input/DownloadButton.tsx
index 795db8dc..9fd46c0b 100644
--- a/src/components/input/DownloadButton.tsx
+++ b/src/components/input/DownloadButton.tsx
@@ -19,7 +19,7 @@ export function DownloadButton({
 
   return (
     <TooltipTrigger delay={0}>
-      <Button variant="quiet" onClick={handleClick} isDisabled={!data}>
+      <Button variant="quiet" onClick={handleClick} isDisabled={!data || data.length === 0}>
         <Icon>
           <Download />
         </Icon>