Update Project.toml

Author: MaxenceGollier

Project.toml

@@ -16,7 +16,7 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 ADNLPModels = "^0.3, 0.4, 0.7"
 Distributions = "0.25"
 MLDatasets = "^0.7.4"
-NLPModels = "^0.16"
+NLPModels = "0.16, 0.17, 0.18, 0.19, 0.20, 0.21"
 Noise = "0.2"
 Requires = "1"
 julia = "^1.6.0"