diff --git a/docs/internals/contributing/writing-code/unit-tests.txt b/docs/internals/contributing/writing-code/unit-tests.txt
index e0d4ab52b6..25a9a15ab8 100644
--- a/docs/internals/contributing/writing-code/unit-tests.txt
+++ b/docs/internals/contributing/writing-code/unit-tests.txt
@@ -244,7 +244,7 @@ dependencies:
 *  gettext_ (:ref:`gettext_on_windows`)
 *  selenium_
 *  sqlparse_ (required)
-*  tblib_
+*  tblib_ 1.5.0+
 
 You can find these dependencies in `pip requirements files`_ inside the
 ``tests/requirements`` directory of the Django source tree and install them
diff --git a/tests/requirements/py3.txt b/tests/requirements/py3.txt
index 3f0a01e164..bb335791f4 100644
--- a/tests/requirements/py3.txt
+++ b/tests/requirements/py3.txt
@@ -13,4 +13,4 @@ pywatchman; sys.platform != 'win32'
 PyYAML
 selenium
 sqlparse
-tblib
+tblib >= 1.5.0