diff --git a/appcast.xml b/appcast.xml
index c101fc9..88bf1e4 100644
--- a/appcast.xml
+++ b/appcast.xml
@@ -8,7 +8,7 @@
             <sparkle:version>2</sparkle:version>
             <sparkle:shortVersionString>1.1.0</sparkle:shortVersionString>
             <sparkle:minimumSystemVersion>14.0</sparkle:minimumSystemVersion>
-            <enclosure url="https://github.com/owengretzinger/meetingnotes/releases/download/v1.1.0/Meetingnotes-1.1.0.dmg" length="9195999" type="application/octet-stream"/>
+            <enclosure url="https://github.com/owengretzinger/meetingnotes/releases/download/v1.1.0/Meetingnotes-1.1.0.dmg" length="9195999" type="application/octet-stream" sparkle:edSignature="F0fvb7XOIPKjPpuyb10Nfjld9ZDM2YSey3MLwQytNuiINJTb986JJ/XL7FF/v8YBPQqZEPNydepP/X3qlgp4DA=="/>
         </item>
         <item>
             <title>1.0.0</title>
@@ -16,7 +16,7 @@
             <sparkle:version>1</sparkle:version>
             <sparkle:shortVersionString>1.0</sparkle:shortVersionString>
             <sparkle:minimumSystemVersion>14.0</sparkle:minimumSystemVersion>
-            <enclosure url="https://github.com/owengretzinger/meetingnotes/releases/download/v1.0.0/Meetingnotes-1.0.0.dmg" length="8183935" type="application/octet-stream"/>
+            <enclosure url="https://github.com/owengretzinger/meetingnotes/releases/download/v1.0.0/Meetingnotes-1.0.0.dmg" length="8183935" type="application/octet-stream" sparkle:edSignature="1uVm5NDPgxn3mmkiifsWOhpukeHZsfQdKzGxSet8cjsmDNlTIZwqpnQXp9OnrgRVhbyGBmua/yySdM9c0U9VCw=="/>
         </item>
     </channel>
 </rss>
\ No newline at end of file
diff --git a/meetingnotes/Info.plist b/meetingnotes/Info.plist
index d267be7..e874cf8 100644
--- a/meetingnotes/Info.plist
+++ b/meetingnotes/Info.plist
@@ -8,5 +8,7 @@
 	<string>Meetingnotes needs screen recording permission to capture system audio for transcription.</string>
 	<key>SUFeedURL</key>
 	<string>https://raw.githubusercontent.com/owengretzinger/meetingnotes/main/appcast.xml</string>
+	<key>SUPublicEDKey</key>
+	<string>BVXHOV8ZxPxKZ1swhFndymzew9nyd3si7849JA9cqsg=</string>
 </dict>
 </plist>
diff --git a/scripts/build_release.sh b/scripts/build_release.sh
index bde1437..86756b8 100755
--- a/scripts/build_release.sh
+++ b/scripts/build_release.sh
@@ -88,12 +88,14 @@ create-dmg \
 
 echo "✅ DMG created: $RELEASES_DIR/$DMG_NAME"
 
-# Generate appcast
-echo "📡 Generating appcast..."
+# Generate appcast with signatures
+echo "📡 Generating appcast with EdDSA signatures..."
 /opt/homebrew/Caskroom/sparkle/2.7.1/bin/generate_appcast "$RELEASES_DIR" \
     --download-url-prefix "https://github.com/owengretzinger/meetingnotes/releases/download/v${VERSION}/" \
     -o "appcast.xml"
 
+echo "📝 Note: Make sure to upload the DMG to GitHub releases with the correct tag (v${VERSION})"
+
 echo "✅ Appcast generated: appcast.xml"
 
 # Show file sizes