diff --git a/requirements-testing.txt b/requirements-testing.txt
index 34b75980e4..443ded3b5e 100644
--- a/requirements-testing.txt
+++ b/requirements-testing.txt
@@ -6,4 +6,5 @@ flake8>=2.1.0
 nbval
 scipy
 lit<19.0.0
+filecheck<0.0.25
 pooch; python_version >= "3.8"