diff --git a/Project.toml b/Project.toml
index cd68aced..a25173c8 100644
--- a/Project.toml
+++ b/Project.toml
@@ -17,6 +17,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 Ext = ["BioSequences", "DataFrames", "Flux", "IterableTables", "Nettle_jll", "PGFPlotsX"]
 
 [compat]
+DataFrames = "1"
 IterableTables = "1"
 PGFPlotsX = "~1.0.0"
 julia = "1.2"