diff --git a/R/insert-tab.R b/R/insert-tab.R
index 1a7563f7a1..c8e7a0cef8 100644
--- a/R/insert-tab.R
+++ b/R/insert-tab.R
@@ -137,14 +137,48 @@ insertTab <- function(inputId, tab, target,
 #' @export
 prependTab <- function(inputId, tab, select = FALSE, menuName = NULL,
                        session = getDefaultReactiveDomain()) {
-  bslib::nav_prepend(inputId, tab, select, menuName, session)
+  force(select)
+  force(menuName)
+  inputId <- session$ns(inputId)
+
+  item <- buildTabItem("id", "tsid", TRUE, divTag = tab,
+    textFilter = if (is.character(tab)) navbarMenuTextFilter else NULL)
+
+  callback <- function() {
+    session$sendInsertTab(
+      inputId = inputId,
+      liTag = processDeps(item$liTag, session),
+      divTag = processDeps(item$divTag, session),
+      menuName = menuName,
+      target = NULL,
+      position = "after",
+      select = select)
+  }
+  session$onFlush(callback, once = TRUE)
 }
 
 #' @rdname insertTab
 #' @export
 appendTab <- function(inputId, tab, select = FALSE, menuName = NULL,
                       session = getDefaultReactiveDomain()) {
-  bslib::nav_append(inputId, tab, select, menuName, session)
+  force(select)
+  force(menuName)
+  inputId <- session$ns(inputId)
+
+  item <- buildTabItem("id", "tsid", TRUE, divTag = tab,
+    textFilter = if (is.character(tab)) navbarMenuTextFilter else NULL)
+
+  callback <- function() {
+    session$sendInsertTab(
+      inputId = inputId,
+      liTag = processDeps(item$liTag, session),
+      divTag = processDeps(item$divTag, session),
+      menuName = menuName,
+      target = NULL,
+      position = "before",
+      select = select)
+  }
+  session$onFlush(callback, once = TRUE)
 }
 
 #' @rdname insertTab