diff --git a/DESCRIPTION b/DESCRIPTION
index 42c16e3..dbac1fd 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -28,6 +28,7 @@ Imports:
     dplyr,
     digest,
     EML (>= 2.0),
+    filelock,
     httr,
     jsonlite (>= 1.8.4),
     magrittr,