diff --git a/Project.toml b/Project.toml
index be5c168..afbceab 100644
--- a/Project.toml
+++ b/Project.toml
@@ -18,6 +18,7 @@ TOML = "fa267f1f-6049-4f14-aa54-33bafae1ed76"
 
 [compat]
 Colors = "0.10, 0.11, 0.12"
+DataFrames = "1"
 DelimitedFiles = "1"
 Graphs = "1.7, 1.8, 1.9"
 Luxor = "3"