diff --git a/Project.toml b/Project.toml
index bb00117c..6d757bfd 100644
--- a/Project.toml
+++ b/Project.toml
@@ -24,6 +24,7 @@ GasChemExt = "GasChem"
 
 [compat]
 DifferentialEquations = "7"
+DynamicQuantities = "1"
 EarthSciData = "0.12"
 EarthSciMLBase = "0.20"
 GasChem = "0.9"