diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4a5f71b..82f4c35 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -36,12 +36,22 @@ jobs:
           release_name: ${{ steps.changelog.outputs.tag }}
           body: ${{ steps.changelog.outputs.clean_changelog }}
 
-      - name: Write Changelog variable
+      - name: write update url to temp
         env:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
         run: |
           mkdir tmp
           echo "${upload_url}" > tmp/upload_url
+      
+      - uses: lifepal/markdown-to-html@v1.2
+        id: create_html
+        with:
+          text: ${{ steps.changelog.outputs.clean_changelog }}
+      
+      - name: write changelog to temp
+        env:
+          changelog_html: ${{ steps.create_html.outputs.html }}
+        run: echo "$changelog_html" > tmp/changelog_html
 
       - uses: actions/upload-artifact@v2
         with:
@@ -104,10 +114,22 @@ jobs:
         apple_id: ${{ secrets.APPLE_ID }}
         apple_id_password: ${{ secrets.APPLE_ID_PASSWORD }}
       run: ./scripts/c_notarize_installer.sh
+    
+    - uses: actions/download-artifact@v2
+      with:
+        name: tmp
+        path: ./tmp
+
+    - name: load changelog to env
+      id: load_changelog
+      run: |
+        changelog=`cat tmp/changelog_html`
+        echo "::set-output name=changelog_html::${changelog}"
 
     - name: generate appcast.xml
       env:
         sparkle_key: ${{ secrets.sparkle_key }}
+        update_notes: ${{ steps.load_changelog.outputs.changelog_html }}
       run: ./scripts/d_build_appcast.sh
 
     - name: gather artifact
@@ -135,7 +157,7 @@ jobs:
         name: tmp
         path: ./tmp
     
-    - name: 'Load UploadURL'
+    - name: load update url
       id: get_upload_url
       run: |
         value=`cat tmp/upload_url`
@@ -151,6 +173,16 @@ jobs:
         asset_name: FireInstaller.pkg
         asset_content_type: application/octet-stream
 
+    - name: Upload Release Asset(installer.zip)
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.get_upload_url.outputs.upload_url }}
+        asset_path: ./dist/FireInstaller.zip
+        asset_name: FireInstaller.zip
+        asset_content_type: application/zip
+
     - name: Upload Release Asset(Fire.zip)
       uses: actions/upload-release-asset@v1
       env:
diff --git a/Fire/Info.plist b/Fire/Info.plist
index 5459c8b..27b03c2 100644
--- a/Fire/Info.plist
+++ b/Fire/Info.plist
@@ -17,13 +17,13 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>v0.2.0</string>
+	<string>v0.3.1</string>
 	<key>CFBundleURLTypes</key>
 	<array>
 		<dict/>
 	</array>
 	<key>CFBundleVersion</key>
-	<string>20210218153556</string>
+	<string>20210218201831</string>
 	<key>ComponentInputModeDict</key>
 	<dict>
 		<key>tsInputModeListKey</key>
diff --git a/package/scripts/postinstall b/package/scripts/postinstall
index 96a2b34..23f3712 100755
--- a/package/scripts/postinstall
+++ b/package/scripts/postinstall
@@ -2,10 +2,12 @@
 
 TARGET='Fire'
 
-pkill -9 "${TARGET}" && rm -rf "/Library/Input\ Methods/${TARGET}.app"
-
 login_user=`/usr/bin/stat -f%Su /dev/console`
 
+/usr/bin/sudo -u "${login_user}" pkill -9 "${TARGET}"
+/usr/bin/sudo -u "${login_user}" rm -rf "/Library/Input\ Methods/${TARGET}.app"
+
+
 /usr/bin/sudo -u "${login_user}" "/Library/Input Methods/${TARGET}.app/Contents/MacOS/${TARGET}" --install
 
 echo "${Target} input method registered and activated successfully"
diff --git a/scripts/b_build_installer.sh b/scripts/b_build_installer.sh
index 6c63eeb..8de4855 100755
--- a/scripts/b_build_installer.sh
+++ b/scripts/b_build_installer.sh
@@ -37,6 +37,7 @@ pkgbuild \
     --sign "Developer ID Installer: Yongbang Yang" \
     "$EXPORT_INSTALLER"
 
-# clean
+# pack zip for update
+zip "$EXPORT_INSTALLER_ZIP" "$EXPORT_INSTALLER"
 
 rm -rf "${ROOT_DIR}"
\ No newline at end of file
diff --git a/scripts/common.sh b/scripts/common.sh
index 81e4d2e..df92b6e 100755
--- a/scripts/common.sh
+++ b/scripts/common.sh
@@ -9,5 +9,6 @@ EXPORT_ARCHIVE="$EXPORT_PATH/archive.xcarchive"
 EXPORT_APP="$EXPORT_PATH/$TARGET.app"
 EXPORT_ZIP="$EXPORT_PATH/$TARGET.zip"
 EXPORT_INSTALLER="$EXPORT_PATH/FireInstaller.pkg"
+EXPORT_INSTALLER_ZIP="$EXPORT_PATH/FireInstaller.zip"
 
 echo "PROJECT_ROOT=$PROJECT_ROOT"
\ No newline at end of file
diff --git a/scripts/d_build_appcast.sh b/scripts/d_build_appcast.sh
index ef77b40..95d05ff 100755
--- a/scripts/d_build_appcast.sh
+++ b/scripts/d_build_appcast.sh
@@ -9,11 +9,11 @@ then
     exit 1
 fi
 
-download_url='https://github.com/qwertyyb/Fire/releases/latest/download/FireInstaller.pkg'
+download_url='https://github.com/qwertyyb/Fire/releases/latest/download/FireInstaller.zip'
 
 version=$(git describe --tags `git rev-list --tags --max-count=1`)
 
-str=$($PROJECT_ROOT/Pods/Sparkle/bin/sign_update -s "${sparkle_key}" "$EXPORT_INSTALLER")
+str=$($PROJECT_ROOT/Pods/Sparkle/bin/sign_update -s "${sparkle_key}" "$EXPORT_INSTALLER_ZIP")
 
 sign=$(echo $str | grep "edSignature=\"[^\"]*" -o | grep "\"[^\"]*" -o)
 sign=${sign#\"}
@@ -45,6 +45,10 @@ cat>$EXPORT_PATH/appcast.xml<<EOF
             <title>${version}</title>
             <pubDate>$(date -R)</pubDate>
             <sparkle:minimumSystemVersion>10.15</sparkle:minimumSystemVersion>
+            <description><![CDATA[
+                ${update_notes}
+            ]]>
+            </description>
             <enclosure url="${download_url}"
               sparkle:version="${CFBundleVersion}"
               sparkle:shortVersionString="${version}"