diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2d3a669..fc99b83 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -403,8 +403,11 @@ jobs:
           # Update creation date
           block = re.sub(r"<creationDate>[^<]*</creationDate>", f"<creationDate>{date}</creationDate>", block)
 
-          # Update SHA-256
-          block = re.sub(r"<sha256>[^<]*</sha256>", f"<sha256>{sha256}</sha256>", block)
+          # Update or add SHA-256
+          if "<sha256>" in block:
+              block = re.sub(r"<sha256>[^<]*</sha256>", f"<sha256>{sha256}</sha256>", block)
+          else:
+              block = block.replace("</downloads>", f"</downloads>\n    <sha256>{sha256}</sha256>")
 
           # Update Gitea download URL
           gitea_url = f"https://git.mokoconsulting.tech/{gitea_org}/{gitea_repo}/releases/download/{tag}/{zip_name}"
diff --git a/updates.xml b/updates.xml
index b22ebca..a08e3b4 100644
--- a/updates.xml
+++ b/updates.xml
@@ -19,6 +19,7 @@
     <downloads>
       <downloadurl type='full' format='zip'>https://git.mokoconsulting.tech/MokoConsulting/MokoCassiopeia/releases/download/development/mokocassiopeia-03.10.18-dev.zip</downloadurl>
     </downloads>
+    <sha256></sha256>
     <tags><tag>development</tag></tags>
     <maintainer>Moko Consulting</maintainer>
     <maintainerurl>https://mokoconsulting.tech</maintainerurl>
@@ -39,6 +40,7 @@
     <downloads>
       <downloadurl type='full' format='zip'>https://git.mokoconsulting.tech/MokoConsulting/MokoCassiopeia/releases/download/alpha/mokocassiopeia-03.10.13.zip</downloadurl>
     </downloads>
+    <sha256></sha256>
     <tags><tag>alpha</tag></tags>
     <maintainer>Moko Consulting</maintainer>
     <maintainerurl>https://mokoconsulting.tech</maintainerurl>
@@ -59,6 +61,7 @@
     <downloads>
       <downloadurl type='full' format='zip'>https://git.mokoconsulting.tech/MokoConsulting/MokoCassiopeia/releases/download/beta/mokocassiopeia-03.10.13.zip</downloadurl>
     </downloads>
+    <sha256></sha256>
     <tags><tag>beta</tag></tags>
     <maintainer>Moko Consulting</maintainer>
     <maintainerurl>https://mokoconsulting.tech</maintainerurl>
@@ -79,6 +82,7 @@
     <downloads>
       <downloadurl type='full' format='zip'>https://git.mokoconsulting.tech/MokoConsulting/MokoCassiopeia/releases/download/release-candidate/mokocassiopeia-03.10.13.zip</downloadurl>
     </downloads>
+    <sha256></sha256>
     <tags><tag>rc</tag></tags>
     <maintainer>Moko Consulting</maintainer>
     <maintainerurl>https://mokoconsulting.tech</maintainerurl>
@@ -99,6 +103,7 @@
     <downloads>
       <downloadurl type='full' format='zip'>https://git.mokoconsulting.tech/MokoConsulting/MokoCassiopeia/releases/download/v03/mokocassiopeia-03.10.13.zip</downloadurl>
     </downloads>
+    <sha256></sha256>
     <tags><tag>stable</tag></tags>
     <maintainer>Moko Consulting</maintainer>
     <maintainerurl>https://mokoconsulting.tech</maintainerurl>