diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c7e04f4e31..aa67503d91 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -4,7 +4,7 @@ on:
   merge_group:
 
 env:
-  BROWSER_UI_TEST_VERSION: '0.18.2'
+  BROWSER_UI_TEST_VERSION: '0.19.0'
 
 jobs:
   test:
diff --git a/tests/gui/runner.rs b/tests/gui/runner.rs
index 93f2a44893..ff808a72c5 100644
--- a/tests/gui/runner.rs
+++ b/tests/gui/runner.rs
@@ -75,7 +75,6 @@ fn main() {
     let mut command = Command::new("npx");
     command
         .arg("browser-ui-test")
-        .arg("--no-sandbox")
         .args(["--variable", "DOC_PATH", book_dir.as_str()])
         .args(["--test-folder", "tests/gui"]);
     if std::env::args().any(|arg| arg == "--disable-headless-test") {
diff --git a/tests/gui/sidebar-nojs.goml b/tests/gui/sidebar-nojs.goml
new file mode 100644
index 0000000000..9a8622f94a
--- /dev/null
+++ b/tests/gui/sidebar-nojs.goml
@@ -0,0 +1,16 @@
+// This GUI test checks that the sidebar takes the whole height when it's inside
+// an iframe (because of JS disabled).
+// Regression test for <https://github.com/rust-lang/mdBook/issues/2528>.
+
+// We disable the requests checks because `searchindex.json` will always fail
+// locally.
+fail-on-request-error: false
+// We disable javascript
+javascript: false
+go-to: |DOC_PATH| + "index.html"
+store-value: (height, 1000)
+set-window-size: (1000, |height|)
+
+within-iframe: (".sidebar-iframe-outer", block {
+    assert-size: (" body", {"height": |height|})
+})