diff --git a/Project.toml b/Project.toml
index 321b05a..f6ef92c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,7 +13,7 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 [compat]
 FastClosures = "0.2.1, 0.3.0"
 LinearOperators = "^2.7"
-NLPModels = "0.19, 0.20"
+NLPModels = "0.19, 0.20, 0.21"
 julia = "^1.6.0"
 
 [extras]