diff --git a/integration_tests/tests/pypi.bats b/integration_tests/tests/pypi.bats
index 1b9283e..9435c5a 100644
--- a/integration_tests/tests/pypi.bats
+++ b/integration_tests/tests/pypi.bats
@@ -3,3 +3,12 @@
     . ./venv/bin/activate
     pip install numpy
 }
+
+@test "Install mkdocs" {
+    bats_require_minimum_version 1.5.0
+    python3 -m venv ./venv
+    . ./venv/bin/activate
+    run ! pip install mkdocs
+    [ "$status" -eq 1 ]
+    [[ "$output" == *"HTTP error 403"* ]]
+}