diff --git a/Project.toml b/Project.toml
index b75d16a..9adb63b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -40,6 +40,7 @@ DataFrames = "1"
 Peaks = "0.4"
 PhysicalConstants = "0.2"
 Unitful = "1"
+UnitfulEquivalences = "0.2"
 julia = "1.7"
 
 [extras]