diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f314867..042f260 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -46,3 +46,30 @@ jobs:
           files: app/build/outputs/apk/release/MonthlyPaymentApp-${{ github.ref_name }}.apk
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Update update.json after release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          TAG_NAME="${{ github.ref_name }}"
+          VERSION_NAME="${TAG_NAME#v}"
+          VERSION_CODE=$(grep 'versionCode' app/build.gradle.kts | head -n 1 | awk '{print $3}')
+
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git fetch origin main
+          git checkout main
+
+          cat <<EOF > update.json
+          {
+            "versionCode": ${VERSION_CODE},
+            "versionName": "${VERSION_NAME}",
+            "url": "https://github.com/oqba26/MonthlyPaymentApp/releases/download/${TAG_NAME}/MonthlyPaymentApp-${TAG_NAME}.apk",
+            "releaseNotes": "بهبودهای پایداری و عملکرد همگام‌سازی",
+            "isForceUpdate": false
+          }
+          EOF
+
+          git add update.json
+          git commit -m "auto-update update.json for release ${TAG_NAME}" || true
+          git push origin main