diff --git a/lib/MadNLPTests/Project.toml b/lib/MadNLPTests/Project.toml
index 630b2ea5..a6eec008 100644
--- a/lib/MadNLPTests/Project.toml
+++ b/lib/MadNLPTests/Project.toml
@@ -12,7 +12,7 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
-JuMP = "~0.23"
+JuMP = "~0.23,~1"
 MadNLP = "~0.4"
 NLPModels = "~0.17.2, 0.18"
 julia = "1.6"