diff --git a/tests/test_deps.py b/tests/test_deps.py
index b88f48f..131091b 100644
--- a/tests/test_deps.py
+++ b/tests/test_deps.py
@@ -4,6 +4,8 @@
 
 import pytest
 
+import shinylive._assets
+
 
 def test_requirements_txt():
     from shinylive._deps import _find_packages_in_requirements
@@ -36,6 +38,9 @@ def test_requirements_txt():
         allow_module_level=True,
     )
 
+# Make sure assets are present before continuing with the tests.
+shinylive._assets.ensure_shinylive_assets()
+
 
 def test_module_to_package_key():
     from shinylive._deps import module_to_package_key