diff --git a/addons/web/static/src/libs/bs5_utility_classes.scss b/addons/web/static/src/libs/bs5_utility_classes.scss
index ac1bc0f8bb9..2ff862446c5 100644
--- a/addons/web/static/src/libs/bs5_utility_classes.scss
+++ b/addons/web/static/src/libs/bs5_utility_classes.scss
@@ -32,3 +32,20 @@ $o-inline-spacers: map-merge($spacers, ('auto': auto));
 .float-end {
   float: right !important;
 }
+
+// == Gaps
+//------------------------------------------------------------------------------
+// "Bootstrap v5 ready" utility-classes to handle gaps.
+// These classes definitions can be safely removed after migrating to BTS v5.
+
+@each $breakpoint in map-keys($grid-breakpoints) {
+  @include media-breakpoint-up($breakpoint) {
+    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
+
+    @each $size, $length in $spacers {
+      .gap#{$infix}-#{$size} {
+        gap: $length !important;
+      }
+    }
+  }
+}