diff --git a/tkpurchase/web/accounts.html b/tkpurchase/web/accounts.html
index 06a5a8b..7388755 100644
--- a/tkpurchase/web/accounts.html
+++ b/tkpurchase/web/accounts.html
@@ -133,7 +133,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=2026031603"></script>
+    <script src="/static/js/tkpurchase-core.js?v=2026031604"></script>
     <script src="/static/js/tkpurchase-accounts.js?v=2026031601"></script>
     <script>initAccountsPage();</script>
 </body>
diff --git a/tkpurchase/web/daylabor.html b/tkpurchase/web/daylabor.html
index 7fcbbd8..ec150e8 100644
--- a/tkpurchase/web/daylabor.html
+++ b/tkpurchase/web/daylabor.html
@@ -148,7 +148,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=2026031603"></script>
+    <script src="/static/js/tkpurchase-core.js?v=2026031604"></script>
     <script src="/static/js/tkpurchase-daylabor.js?v=2026031601"></script>
     <script>initDayLaborPage();</script>
 </body>
diff --git a/tkpurchase/web/index.html b/tkpurchase/web/index.html
index 67082c7..c8c284b 100644
--- a/tkpurchase/web/index.html
+++ b/tkpurchase/web/index.html
@@ -88,7 +88,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=2026031603"></script>
+    <script src="/static/js/tkpurchase-core.js?v=2026031604"></script>
     <script src="/static/js/tkpurchase-dashboard.js?v=2026031601"></script>
     <script>initDashboard();</script>
 </body>
diff --git a/tkpurchase/web/partner-history.html b/tkpurchase/web/partner-history.html
index d13443f..273bec6 100644
--- a/tkpurchase/web/partner-history.html
+++ b/tkpurchase/web/partner-history.html
@@ -61,8 +61,8 @@
         <div id="historyPagination" class="mt-4 flex justify-center gap-2"></div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=2026031603"></script>
-    <script src="/static/js/tkpurchase-partner-history.js?v=2026031601"></script>
+    <script src="/static/js/tkpurchase-core.js?v=2026031604"></script>
+    <script src="/static/js/tkpurchase-partner-history.js?v=2026031602"></script>
     <script>initPartnerHistory();</script>
 </body>
 </html>
diff --git a/tkpurchase/web/partner-portal.html b/tkpurchase/web/partner-portal.html
index ecebac8..5ec4e68 100644
--- a/tkpurchase/web/partner-portal.html
+++ b/tkpurchase/web/partner-portal.html
@@ -81,8 +81,8 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=2026031603"></script>
-    <script src="/static/js/tkpurchase-partner-portal.js?v=2026031601"></script>
+    <script src="/static/js/tkpurchase-core.js?v=2026031604"></script>
+    <script src="/static/js/tkpurchase-partner-portal.js?v=2026031602"></script>
     <script>initPartnerPortal();</script>
 </body>
 </html>
diff --git a/tkpurchase/web/partner.html b/tkpurchase/web/partner.html
index 8ea5251..6b37327 100644
--- a/tkpurchase/web/partner.html
+++ b/tkpurchase/web/partner.html
@@ -294,7 +294,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=2026031603"></script>
+    <script src="/static/js/tkpurchase-core.js?v=2026031604"></script>
     <script src="/static/js/tkpurchase-partner.js?v=2026031601"></script>
     <script>initPartnerPage();</script>
 </body>
diff --git a/tkpurchase/web/schedule.html b/tkpurchase/web/schedule.html
index b9dff1b..ff65d1d 100644
--- a/tkpurchase/web/schedule.html
+++ b/tkpurchase/web/schedule.html
@@ -275,8 +275,8 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=2026031603"></script>
-    <script src="/static/js/tkpurchase-schedule.js?v=2026031601"></script>
+    <script src="/static/js/tkpurchase-core.js?v=2026031604"></script>
+    <script src="/static/js/tkpurchase-schedule.js?v=2026031602"></script>
     <script>initSchedulePage();</script>
 </body>
 </html>
diff --git a/tkpurchase/web/static/js/tkpurchase-core.js b/tkpurchase/web/static/js/tkpurchase-core.js
index 9bba7cf..0de2c72 100644
--- a/tkpurchase/web/static/js/tkpurchase-core.js
+++ b/tkpurchase/web/static/js/tkpurchase-core.js
@@ -40,7 +40,8 @@ async function api(path, opts = {}) {
     const token = getToken();
     const headers = { 'Authorization': token ? `Bearer ${token}` : '', ...(opts.headers||{}) };
     if (!(opts.body instanceof FormData)) headers['Content-Type'] = 'application/json';
-    const res = await fetch(API_BASE + path, { ...opts, headers, cache: 'no-store' });
+    const cacheBust = path.includes('?') ? '&_t=' + Date.now() : '?_t=' + Date.now();
+    const res = await fetch(API_BASE + path + cacheBust, { ...opts, headers, cache: 'no-store' });
     if (res.status === 401) { _safeRedirect(); throw new Error('인증 만료'); }
     if (res.headers.get('content-type')?.includes('text/csv')) return res;
     const data = await res.json();
diff --git a/tkpurchase/web/workreport-summary.html b/tkpurchase/web/workreport-summary.html
index 1a879fe..a5a6f01 100644
--- a/tkpurchase/web/workreport-summary.html
+++ b/tkpurchase/web/workreport-summary.html
@@ -100,7 +100,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=2026031603"></script>
+    <script src="/static/js/tkpurchase-core.js?v=2026031604"></script>
     <script src="/static/js/tkpurchase-workreport-summary.js?v=2026031601"></script>
     <script>initSummaryPage();</script>
 </body>
diff --git a/tkpurchase/web/workreport.html b/tkpurchase/web/workreport.html
index f42a7ac..1140cc0 100644
--- a/tkpurchase/web/workreport.html
+++ b/tkpurchase/web/workreport.html
@@ -114,7 +114,7 @@
         </div>
     </div>
 
-    <script src="/static/js/tkpurchase-core.js?v=2026031603"></script>
+    <script src="/static/js/tkpurchase-core.js?v=2026031604"></script>
     <script src="/static/js/tkpurchase-workreport.js?v=2026031601"></script>
     <script>initWorkReportPage();</script>
 </body>