diff --git a/Project.toml b/Project.toml
index 1515f97..b1322f4 100644
--- a/Project.toml
+++ b/Project.toml
@@ -56,7 +56,7 @@ Gurobi = "1.3.0"
 HiGHS = "1.9"
 IESoptLib = "0.3"
 Ipopt = "1.6.2"
-JLD2 = "0.4"
+JLD2 = "0.4, 0.5"
 JSON = "0.21"
 JuMP = "1.22"
 LibGit2 = "<0.0.1,1"