diff --git a/Project.toml b/Project.toml
index 975e871..815179a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -17,7 +17,7 @@ TrigPolys = "bbdedc48-cb31-4a37-9fe3-b015aecc8dd3"
 AutoGrad = "1"
 MathOptInterface = "1"
 MultivariatePolynomials = "0.5"
-NLopt = "0.6, 1"
+NLopt = "1"
 SemialgebraicSets = "0.3"
 SumOfSquares = "0.7"
 TrigPolys = "0.1"