diff --git a/Project.toml b/Project.toml
index da4ed929..1606d74e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -61,7 +61,7 @@ CategoricalArrays = "0.7, 0.8"
 ClassImbalance = "0.8"
 Combinatorics = "1"
 DataDeps = "0.7"
-DataFrames = "0.20, 0.21"
+DataFrames = "0.20, 0.21, 1"
 DecisionTree = "0.10"
 DefaultApplication = "1"
 Distributions = "0.21, 0.22, 0.23"