diff --git a/Project.toml b/Project.toml
index 27b1bd6..422a5af 100644
--- a/Project.toml
+++ b/Project.toml
@@ -25,7 +25,7 @@ MixedModelsSerializationEffectsExt = ["DataFrames", "Effects"]
 DataFrames = "1"
 Effects = "1"
 GLM = "1"
-JLD2 = "0.4.22"
+JLD2 = "0.4.22, 0.5, 0.6"
 MixedModels = "5.0.3"
 StatsAPI = "1"
 StatsBase = "0.33, 0.34"