diff --git a/exams.html b/exams.html
index a2b914a..c6bd8cb 100644
--- a/exams.html
+++ b/exams.html
@@ -131,7 +131,7 @@
           const navResp = await fetch('/assets/pages.json');
           this.pages = await navResp.json();
 
-          const bannerResp = await fetch('/assets/banner.json');
+          const bannerResp = await fetch('/assets/banner.json?t=${Date.now()}');
           this.banner = await bannerResp.json();
 
           const examResp = await fetch('/assets/exams.json');
diff --git a/history.html b/history.html
index c9f5f42..865f8e0 100644
--- a/history.html
+++ b/history.html
@@ -101,7 +101,7 @@
           const navResp = await fetch('/assets/pages.json');
           this.pages = await navResp.json();
 
-          const bannerResp = await fetch('/assets/banner.json');
+          const bannerResp = await fetch('/assets/banner.json?t=${Date.now()}');
           this.banner = await bannerResp.json();
         },
         toggleDarkMode() {
diff --git a/index.html b/index.html
index 291ff44..f95ecda 100644
--- a/index.html
+++ b/index.html
@@ -124,7 +124,7 @@
           const navResp = await fetch('/assets/pages.json');
           this.pages = await navResp.json();
 
-          const bannerResp = await fetch('/assets/banner.json');
+          const bannerResp = await fetch('/assets/banner.json?t=${Date.now()}');
           this.banner = await bannerResp.json();
         },
         toggleDarkMode() {
diff --git a/mesh/index.html b/mesh/index.html
index 2baa77e..1aa1d66 100644
--- a/mesh/index.html
+++ b/mesh/index.html
@@ -117,7 +117,7 @@
           const navResp = await fetch('/assets/pages.json');
           this.pages = await navResp.json();
 
-          const bannerResp = await fetch('/assets/banner.json');
+          const bannerResp = await fetch('/assets/banner.json?t=${Date.now()}');
           this.banner = await bannerResp.json();
         },
         toggleDarkMode() {
diff --git a/net/index.html b/net/index.html
index 9753197..56b693f 100644
--- a/net/index.html
+++ b/net/index.html
@@ -121,7 +121,7 @@
           const navResp = await fetch('/assets/pages.json');
           this.pages = await navResp.json();
 
-          const bannerResp = await fetch('/assets/banner.json');
+          const bannerResp = await fetch('/assets/banner.json?t=${Date.now()}');
           this.banner = await bannerResp.json();
         },
         toggleDarkMode() {