diff --git a/DESCRIPTION b/DESCRIPTION
index 449a7f4..4e29f6a 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -19,6 +19,7 @@ Imports:
   jpeg,
   jsonlite,
   Lahman,
+  lubridate,
   knitr,
   maps,
   microbenchmark,