diff --git a/Project.toml b/Project.toml
index cceb26f..2309005 100644
--- a/Project.toml
+++ b/Project.toml
@@ -15,6 +15,7 @@ WignerD = "87c4ff3e-34df-11e9-37a7-516cea4e0402"
 WignerSymbols = "9f57e263-0b3d-5e2e-b1be-24f2bb48858b"
 
 [compat]
+DataFrames = "1"
 julia = "1.7"
 
 [extras]