diff --git a/test-requirements.txt b/test-requirements.txt
index 08606b1..01725a4 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -10,7 +10,3 @@ pifpaf>=0.10.0 # Apache-2.0
 nose>=1.3.7  # GNU LGPL
 pytest>=3.0.0  # MIT
 urllib3>=1.15.1  # MIT
-
-# TODO(tkajinam): Remove this once the following change is released
-# https://github.com/testing-cabal/testrepository/pull/48
-extras>=1.0.0 # MIT