diff --git a/Project.toml b/Project.toml
index 4cb76ce..b56a99b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "QuadraticModels"
 uuid = "f468eda6-eac5-11e8-05a5-ff9e497bcd19"
 authors = ["Dominique Orban <dominique.orban@gmail.com>"]
-version = "0.5.0"
+version = "0.6.0"
 
 [deps]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
@@ -12,7 +12,7 @@ Requires = "ae029012-a4dd-5104-9daa-d747884805df"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [compat]
-LinearOperators = "2.0"
+LinearOperators = "2"
 NLPModels = "0.17"
 NLPModelsModifiers = "0.4"
 Requires = "0.3, 0.4, 0.5, 1.0"