diff --git a/Project.toml b/Project.toml
index 842e7905..955de6a2 100644
--- a/Project.toml
+++ b/Project.toml
@@ -32,7 +32,7 @@ CUDA = "3"
 DataDeps = "0.7"
 Distributions = "0.25"
 DocStringExtensions = "0.8, 0.9"
-EnsembleKalmanProcesses = "0.8, 0.13"
+EnsembleKalmanProcesses = "0.8, 0.13, 1"
 GaussianProcesses = "0.12"
 JLD2 = "0.4"
 LineSearches = "7"