diff --git a/assets/sass/_zen.scss b/assets/sass/_zen.scss
index da0577f..258cc33 100644
--- a/assets/sass/_zen.scss
+++ b/assets/sass/_zen.scss
@@ -271,7 +271,7 @@ figure {
 
     &:required+span::after {
       content: ' *';
-      color: var(--color-red);
+      color: var(--color-mark-highlight);
       vertical-align: top;
     }
 
diff --git a/assets/sass/components/button/_button.scss b/assets/sass/components/button/_button.scss
index 235187c..277386c 100644
--- a/assets/sass/components/button/_button.scss
+++ b/assets/sass/components/button/_button.scss
@@ -71,7 +71,7 @@ button,
   cursor: default;
   color: var(--color-button-disabled);
   background-color: var(--color-grey-extra-light);
-  border-color: var(--color-grey-extra-light);
+  border: 1px solid var(--color-button-disabled);
   background-image: none;
   text-shadow: none;