diff --git a/res/themes/dark/css/_dark.scss b/res/themes/dark/css/_dark.scss
index a254d68d83..d3ed22e1c4 100644
--- a/res/themes/dark/css/_dark.scss
+++ b/res/themes/dark/css/_dark.scss
@@ -48,7 +48,7 @@ $event-selected-color: $header-panel-bg-color;
 $primary-hairline-color: transparent;
 
 // used for the border of input text fields
-$input-border-color: #e7e7e7;
+$input-border-color: rgba(231, 231, 231, 0.2);
 $input-darker-bg-color: $search-bg-color;
 $input-darker-fg-color: $search-placeholder-color;
 $input-lighter-bg-color: #f2f5f8;