diff --git a/ui/components/app/signature-request/signature-request-footer/index.scss b/ui/components/app/signature-request/signature-request-footer/index.scss
index 89fe1ffd2fe6..0caf6a2be136 100644
--- a/ui/components/app/signature-request/signature-request-footer/index.scss
+++ b/ui/components/app/signature-request/signature-request-footer/index.scss
@@ -1,6 +1,6 @@
 .signature-request-footer {
   display: flex;
-  border-top: 1px solid var(--color-border-muted);
+  box-shadow: inset 0 1px 0 var(--color-border-muted);
 
   button {
     text-transform: uppercase;