diff --git a/Project.toml b/Project.toml
index f3212eba..6b3dfabb 100644
--- a/Project.toml
+++ b/Project.toml
@@ -35,7 +35,7 @@ Cloudy = "0.5.6"
 DiffEqBase = "6"
 Distributions = "0.25"
 DocStringExtensions = "0.9.3"
-EnsembleKalmanProcesses = "1.1"
+EnsembleKalmanProcesses = "1.1, 2"
 Interpolations = "0.15"
 JLD2 = "0.4"
 LinearAlgebra = "1"