diff --git a/DESCRIPTION b/DESCRIPTION
index af7fd2ec..17a9a04c 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: rhino
 Title: A Framework for Enterprise Shiny Applications
-Version: 1.3.1.9001
+Version: 1.3.1.9002
 Authors@R:
   c(
     person("Kamil", "Żyła", role = c("aut", "cre"), email = "opensource+kamil@appsilon.com"),
diff --git a/NEWS.md b/NEWS.md
index 9fb3dec1..c5cafc15 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -4,6 +4,7 @@
 2. Add E2E tests for the Rhino package (internal).
 3. Add support for using React in Rhino
 (tutorial, JS function `registerReactComponents()`, R function `react_component()`).
+4. Require box v1.3.1 or later (fixes issues with lazy-loaded data and trailing commas).
 
 # [rhino 1.3.1](https://github.com/Appsilon/rhino/releases/tag/v1.3.1)
 
diff --git a/R/app.R b/R/app.R
index 4561939d..a7b19d55 100644
--- a/R/app.R
+++ b/R/app.R
@@ -6,12 +6,6 @@ setup_box_path <- function() {
   }
 }
 
-# Make it possible to reload the app without restarting the R session.
-purge_box_cache <- function() {
-  loaded_mods <- loadNamespace("box")$loaded_mods
-  rm(list = ls(loaded_mods), envir = loaded_mods)
-}
-
 configure_logger <- function() {
   config <- config::get()
   log_level <- config$rhino_log_level
@@ -126,7 +120,7 @@ with_head_tags <- function(ui) {
 #' @export
 app <- function() {
   setup_box_path()
-  purge_box_cache()
+  box::purge_cache()
   configure_logger()
   shiny::addResourcePath("static", fs::path_wd("app", "static"))
 
diff --git a/R/tools.R b/R/tools.R
index 120f78fa..d96e1ce1 100644
--- a/R/tools.R
+++ b/R/tools.R
@@ -11,7 +11,7 @@
 #' }
 #' @export
 test_r <- function() {
-  purge_box_cache()
+  box::purge_cache()
   testthat::test_dir(fs::path("tests", "testthat"))
 }
 
diff --git a/vignettes/explanation/box-modules.Rmd b/vignettes/explanation/box-modules.Rmd
index 127bad38..efe9a5b4 100644
--- a/vignettes/explanation/box-modules.Rmd
+++ b/vignettes/explanation/box-modules.Rmd
@@ -34,12 +34,12 @@ Introduction of box to existing apps written without it
 has helped to improve the code structure and find bugs.
 
 # Usage
-The best place to learn about box is its official [documentation](https://klmr.me/box/). 
+The best place to learn about box is its official [documentation](https://klmr.me/box/).
 The discussion here will mainly focus on how to use box inside Rhino.
 
 Rhino suggests the use of [`app/logic` and `app/view`](https://appsilon.github.io/rhino/articles/explanation/application-structure.html).
-Rhino creates these directories by default. 
-Code that is independent of Shiny should be kept in `app/logic` 
+Rhino creates these directories by default.
+Code that is independent of Shiny should be kept in `app/logic`
 while code using or related to Shiny modules should be kept in `app/view`.
 This structure makes it easy to make a nested hierarchy of code with the help of box.
 
@@ -106,7 +106,7 @@ server <- function(id) {
 
 ```
 
-With explicit attaching of function names, it is clear from above that the code 
+With explicit attaching of function names, it is clear from above that the code
 uses `shiny.semantic::textInput()` and not `shiny::textInput()`.
 
 ```r
@@ -189,19 +189,20 @@ box::use(
 
 # Known issues
 
+The following issues were fixed in box v1.1.3, which is required by Rhino starting with v1.4.0.
+This section is left here for reference.
+
 ### Lazy-loaded data
-The following issue is fixed in box v1.1.3. Rhino v1.4.0 requires box v1.1.3 or later
-Box 1.1.0 doesn't support lazy-loaded [data](https://r-pkgs.org/data.html#data-data),
-so e.g. `box::use(datasets[mtcars])` won't work.
-This feature should be available in the next release
+
+Prior to v1.1.3 box didn't support lazy-loaded [data](https://r-pkgs.org/data.html#data-data),
+so e.g. `box::use(datasets[mtcars])` wouldn't work
 (see this [issue](https://github.com/klmr/box/issues/219)).
-For now please use `datasets::mtcars` in your code.
+It was possible to workaround it by using `datasets::mtcars` instead.
 
 ### Trailing commas
-Box 1.1.0 allows trailing commas in `box::use()` statements and code,
-but they can cause problems in some circumstances:
+
+Box allows trailing commas in `box::use()` statements and code,
+but prior to v1.1.3 they could cause problems in some circumstances:
 
 1. Reexports ([issue](https://github.com/klmr/box/issues/263)).
 2. Functions accessed via `$` ([issue](https://github.com/klmr/box/issues/266)).
-
-Both issues should be fixed in the nearest release.