diff --git a/dev-reqs.txt b/dev-reqs.txt
index a29fb76ad303f..3b50375e14f5b 100644
--- a/dev-reqs.txt
+++ b/dev-reqs.txt
@@ -1,4 +1,4 @@
 coveralls
-pillow
+Pillow
 sphinx
 sphinx_bootstrap_theme