diff --git a/assets/stylesheets/modules/ai-helper/common/ai-helper.scss b/assets/stylesheets/modules/ai-helper/common/ai-helper.scss
index 03631fc8..6ae177eb 100644
--- a/assets/stylesheets/modules/ai-helper/common/ai-helper.scss
+++ b/assets/stylesheets/modules/ai-helper/common/ai-helper.scss
@@ -245,7 +245,7 @@
   display: block;
   align-self: baseline;
   background: var(--secondary);
-  border: 1px solid var(--primary-medium);
+  border: 1px solid var(--primary-400);
   border-left: none;
 }
 
@@ -266,7 +266,7 @@
 .suggest-category-button {
   display: block;
   align-self: baseline;
-  border: 1px solid var(--primary-medium);
+  border: 1px solid var(--primary-400);
   border-left: none;
   background: none;
 }