diff --git a/tobago-core/src/main/java/org/apache/myfaces/tobago/internal/renderkit/renderer/HeaderRenderer.java b/tobago-core/src/main/java/org/apache/myfaces/tobago/internal/renderkit/renderer/HeaderRenderer.java
index 2ac5098..02d444d 100644
--- a/tobago-core/src/main/java/org/apache/myfaces/tobago/internal/renderkit/renderer/HeaderRenderer.java
+++ b/tobago-core/src/main/java/org/apache/myfaces/tobago/internal/renderkit/renderer/HeaderRenderer.java
@@ -48,7 +48,7 @@
     writer.writeClassAttribute(
         TobagoClass.HEADER,
         TobagoClass.HEADER.createMarkup(markup),
-        header.isFixed() ? BootstrapClass.FIXED_TOP : null,
+        header.isFixed() ? BootstrapClass.STICKY_TOP : null,
         header.getCustomClass());
 // TBD: should NAVBAR class be in the LinksRenderer?
     writer.writeAttribute(HtmlAttributes.TITLE, header.getTip(), true);
diff --git a/tobago-core/src/main/java/org/apache/myfaces/tobago/renderkit/css/BootstrapClass.java b/tobago-core/src/main/java/org/apache/myfaces/tobago/renderkit/css/BootstrapClass.java
index 3d3b21c..f0f15b4 100644
--- a/tobago-core/src/main/java/org/apache/myfaces/tobago/renderkit/css/BootstrapClass.java
+++ b/tobago-core/src/main/java/org/apache/myfaces/tobago/renderkit/css/BootstrapClass.java
@@ -260,6 +260,10 @@
   FIGURE_CAPTION("figure-caption"),
   FIGURE_IMG("figure-img"),
   FIXED_BOTTOM("fixed-bottom"),
+  /**
+   * @deprecated since 5.0.0, please use {@link #STICKY_TOP}
+   */
+  @Deprecated
   FIXED_TOP("fixed-top"),
   FLEX_COLUMN("flex-column"),
   FLEX_COLUMN_REVERSE("flex-column-reverse"),
@@ -367,7 +371,7 @@
   @Deprecated
   NAVBAR_FIXED_BOTTOM("fixed-bottom"),
   /**
-   * @deprecated since 4.0.0, please use {@link #FIXED_TOP}
+   * @deprecated since 4.0.0, please use {@link #STICKY_TOP}
    */
   @Deprecated
   NAVBAR_FIXED_TOP("fixed-top"),
@@ -472,6 +476,7 @@
   ROW("row"),
   SHOW("show"),
   SR_ONLY("sr-only"),
+  STICKY_TOP("sticky-top"),
   TEXT_DANGER("text-danger"),
   TEXT_DARK("text-dark"),
   TEXT_INFO("text-info"),
diff --git a/tobago-core/src/main/resources/scss/_tobago.scss b/tobago-core/src/main/resources/scss/_tobago.scss
index 8a2ccd7..5d1934f 100644
--- a/tobago-core/src/main/resources/scss/_tobago.scss
+++ b/tobago-core/src/main/resources/scss/_tobago.scss
@@ -328,8 +328,7 @@
 .tobago-header {
   margin-bottom: 1rem;
 
-  &.fixed-top {
-    position: sticky;
+  &.sticky-top {
     margin-top: -$page-padding-top;
     margin-left: -($grid-gutter-width / 2);
     margin-right: -($grid-gutter-width / 2);