diff --git a/Project.toml b/Project.toml
index da54486..44c9858 100644
--- a/Project.toml
+++ b/Project.toml
@@ -14,7 +14,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 julia = "1.4"
 Mimi = "1"
 CSVFiles = "0.16, 1"
-DataFrames = "0.19.1, 0.20, 0.21, 0.22", 1.0
+DataFrames = "0.19.1, 0.20, 0.21, 0.22, 1.0"
 
 [targets]
 test = ["Test"]