diff --git a/desktop/src-tauri/capabilities/default.json b/desktop/src-tauri/capabilities/default.json
index d61e6fd..2f5f10f 100644
--- a/desktop/src-tauri/capabilities/default.json
+++ b/desktop/src-tauri/capabilities/default.json
@@ -36,9 +36,9 @@
       "identifier": "http:default",
       "allow": [
         { "url": "https://stock.exdev.co.kr/**" },
+        { "url": "https://exdev.co.kr/**" },
         { "url": "http://localhost:8080/**" },
         { "url": "http://127.0.0.1:8080/**" },
-        { "url": "https://stock.exdev.co.kr/**" },
         { "url": "https://api.upbit.com/**" }
       ]
     }
diff --git a/desktop/src/bridge/updater.ts b/desktop/src/bridge/updater.ts
index 4f1a698..d42702b 100644
--- a/desktop/src/bridge/updater.ts
+++ b/desktop/src/bridge/updater.ts
@@ -162,8 +162,10 @@ async function formatUpdateError(e: unknown): Promise<string> {
       ? '서버 업데이트 정보(latest.json) 형식 오류입니다. PC 프로그램 탭에서 dmg를 받아 주세요.'
       : '서버 업데이트 정보(latest.json) 형식 오류입니다. PC 프로그램 탭에서 exe를 받아 주세요.';
   }
-  if (/insecuretransport|insecure transport|http url|https/.test(lower)) {
-    return '업데이트 URL 보안(HTTPS) 설정 오류입니다. 잠시 후 다시 시도해 주세요.';
+  if (/insecuretransport|insecure transport|http url(?!s)/.test(lower)) {
+    return onWin
+      ? '업데이트 URL 보안(HTTPS) 설정 오류입니다. PC 프로그램 탭에서 exe를 받아 다시 설치해 주세요.'
+      : '업데이트 URL 보안(HTTPS) 설정 오류입니다. PC 프로그램 탭에서 dmg를 받아 다시 설치해 주세요.';
   }
   if (/signature|pubkey|verify|minisign|invalid key/.test(lower)) {
     return onMac
diff --git a/scripts/bump-desktop-version-from-release.sh b/scripts/bump-desktop-version-from-release.sh
index 61a613f..deba69c 100755
--- a/scripts/bump-desktop-version-from-release.sh
+++ b/scripts/bump-desktop-version-from-release.sh
@@ -11,6 +11,8 @@ BUILD_INFO="${WORK_TREE}/dist-desktop/build-info.json"
 RELEASE_DIR="${GC_DESKTOP_APP_RELEASE_DIR:-$WORK_TREE/data/desktop-releases}"
 
 PUBLISHED_LATEST_URL="${DESKTOP_PUBLISHED_LATEST_URL:-${DESKTOP_UPDATE_BASE_URL:-https://stock.exdev.co.kr/desktop/updates}/latest.json}"
+PUBLISHED_LATEST_URL="${PUBLISHED_LATEST_URL/http:\/\/exdev.co.kr/https://stock.exdev.co.kr}"
+PUBLISHED_LATEST_URL="${PUBLISHED_LATEST_URL/https:\/\/exdev.co.kr/https://stock.exdev.co.kr}"
 REMOTE_PUB_VER=""
 if REMOTE_JSON="$(curl -sf --connect-timeout 5 --max-time 12 "$PUBLISHED_LATEST_URL" 2>/dev/null)"; then
   REMOTE_PUB_VER="$(printf '%s' "$REMOTE_JSON" | node -e "
diff --git a/scripts/generate-desktop-latest-json.mjs b/scripts/generate-desktop-latest-json.mjs
index 6d5cfca..bbda107 100644
--- a/scripts/generate-desktop-latest-json.mjs
+++ b/scripts/generate-desktop-latest-json.mjs
@@ -86,7 +86,10 @@ function addPlatform(platformKey, bundleName) {
     }
   }
   platforms[platformKey] = {
-    url: `${baseUrl}/${encodeURIComponent(bundleName)}`,
+    url: `${baseUrl}/${encodeURIComponent(bundleName)}`.replace(
+      /^https:\/\/exdev\.co\.kr/i,
+      'https://stock.exdev.co.kr',
+    ),
     signature,
     bundleVersion: effectiveVersion,
   };
diff --git a/scripts/prepare-tauri-build.sh b/scripts/prepare-tauri-build.sh
index 85b7027..6cee1d2 100755
--- a/scripts/prepare-tauri-build.sh
+++ b/scripts/prepare-tauri-build.sh
@@ -27,7 +27,9 @@ conf.bundle.createUpdaterArtifacts = enable;
 conf.plugins = conf.plugins || {};
 conf.plugins.updater = conf.plugins.updater || {};
 conf.plugins.updater.endpoints = (conf.plugins.updater.endpoints || [])
-  .map((u) => String(u).replace(/^http:\\/\\/exdev\\.co\\.kr\\//, 'https://stock.exdev.co.kr/'));
+  .map((u) => String(u)
+    .replace(/^http:\\/\\/exdev\\.co\\.kr\\//, 'https://stock.exdev.co.kr/')
+    .replace(/^https:\\/\\/exdev\\.co\\.kr\\//, 'https://stock.exdev.co.kr/'));
 if (!conf.plugins.updater.endpoints.length) {
   conf.plugins.updater.endpoints = ['https://stock.exdev.co.kr/desktop/updates/latest.json'];
 }
diff --git a/scripts/publish-desktop-update.sh b/scripts/publish-desktop-update.sh
index 98f82ee..d1d8fe1 100755
--- a/scripts/publish-desktop-update.sh
+++ b/scripts/publish-desktop-update.sh
@@ -10,6 +10,7 @@ UPDATES_DIR="${UPDATES_DIR:-$WORK_TREE/frontend/public/desktop/updates}"
 WEB_STATIC_DIR="${WEB_STATIC_DIR:-$UPDATES_DIR}"
 BASE_URL="${DESKTOP_UPDATE_BASE_URL:-https://stock.exdev.co.kr/desktop/updates}"
 BASE_URL="${BASE_URL/http:\/\//https:\/\/}"
+BASE_URL="${BASE_URL/https:\/\/exdev.co.kr/https:\/\/stock.exdev.co.kr}"
 DESKTOP_RELEASE_DIR="${GC_DESKTOP_APP_RELEASE_DIR:-$WORK_TREE/data/desktop-releases}"
 KEY_PATH="${TAURI_SIGNER_KEY:-$HOME/.tauri/goldenchart.key}"
 DESKTOP_DIR="$WORK_TREE/desktop"
@@ -186,7 +187,20 @@ node "$WORK_TREE/scripts/ensure-desktop-latest-json.mjs" \
   exit 1
 }
 
-LATEST_SIZE="$(wc -c < "$PUBLISH_UPDATES/latest.json" | tr -d ' ')"
+LATEST_PATH="$PUBLISH_UPDATES/latest.json"
+node -e "
+const fs=require('fs'); const p=process.argv[1];
+const j=JSON.parse(fs.readFileSync(p,'utf8'));
+for (const k of Object.keys(j.platforms||{})) {
+  const u=j.platforms[k]?.url;
+  if (typeof u==='string' && /exdev\\.co\\.kr/i.test(u)) {
+    j.platforms[k].url=u.replace(/^https:\\/\\/exdev\\.co\\.kr/i,'https://stock.exdev.co.kr');
+  }
+}
+fs.writeFileSync(p, JSON.stringify(j,null,2)+'\\n');
+" "$LATEST_PATH"
+
+LATEST_SIZE="$(wc -c < "$LATEST_PATH" | tr -d ' ')"
 if [[ "${LATEST_SIZE:-0}" -lt 8 ]]; then
   log "ERROR: latest.json is empty (${LATEST_SIZE} bytes)" >&2
   exit 1