diff --git a/test/Project.toml b/test/Project.toml
index 9543bb27..2879875e 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -13,7 +13,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 [compat]
 CTBase = "0.14"
 HSL = "0.4"
-JLD2 = "0.4" # 0.5 has ugly warnings for functions
+JLD2 = "0.5"
 JSON3 = "1"
 MadNLP = "0.8"
 NLPModelsIpopt = "0.10"