diff --git a/ps17/views/css/payments.css b/ps17/views/css/payments.css
index 1e041b30f..075d5b0ae 100644
--- a/ps17/views/css/payments.css
+++ b/ps17/views/css/payments.css
@@ -275,7 +275,7 @@
   transition: opacity 0.5s linear;
 
   background-color: rgba(0, 0, 0, 0.15);
-  z-index: 999;
+  z-index: 9999;
 }
 
 .ps-checkout.overlay.visible {
diff --git a/ps8/views/css/payments.css b/ps8/views/css/payments.css
index 4fbdd49dc..075d5b0ae 100644
--- a/ps8/views/css/payments.css
+++ b/ps8/views/css/payments.css
@@ -275,7 +275,7 @@
   transition: opacity 0.5s linear;
 
   background-color: rgba(0, 0, 0, 0.15);
-  z-index: 100;
+  z-index: 9999;
 }
 
 .ps-checkout.overlay.visible {
diff --git a/ps9/views/css/payments.css b/ps9/views/css/payments.css
index 9975c56d4..c1d5c33a1 100644
--- a/ps9/views/css/payments.css
+++ b/ps9/views/css/payments.css
@@ -275,7 +275,7 @@
   transition: opacity 0.5s linear;
 
   background-color: rgba(0, 0, 0, 0.15);
-  z-index: 100;
+  z-index: 9999;
 }
 
 .ps-checkout.overlay.visible {