1 files changed, 1 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index acfac43..020c653 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,3 +10,4 @@ edition = "2018"
 
 [dependencies]
 chrono = "0.4.19"
+once_cell = "1.4.1"