diff --git a/DESCRIPTION b/DESCRIPTION
index 22e1959..50882d5 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -9,7 +9,7 @@ Description: This is a customized fork of the original work from Tianwei Yu.
         It takes the adaptive processing of LC/MS metabolomics data further
         with focus on high resolution MS for both LC and GC applications.
 Depends: R (>= 3.50), MASS, mzR, splines, doParallel, foreach,
-        snow, dplyr, tidyr, stringr, tibble, tools, arrow, plyr
+        snow, plyr, dplyr, tidyr, stringr, tibble, tools, arrow
 biocViews: Technology, MassSpectrometry
 License: GPL-2
 LazyLoad: yes