diff --git a/workflows/preview_server/required_requirements.txt b/workflows/preview_server/required_requirements.txt
index 06d6657..ccc77f5 100644
--- a/workflows/preview_server/required_requirements.txt
+++ b/workflows/preview_server/required_requirements.txt
@@ -12,3 +12,4 @@ addict
 yapf
 deepdiff
 pynvml
+spandrel