diff --git a/Project.toml b/Project.toml
index 4051dd977..4bb2f9753 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,7 +16,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 AbstractTrees = "0.2, 0.3"
 BenchmarkTools = "^0.4, 0.5, 0.6, 0.7, 1.0"
 LDLFactorizations = "0.8.1"
-MathOptInterface = "0.9, 0.10"
+MathOptInterface = "0.9, 0.10, 1"
 OrderedCollections = "^1.0"
 julia = "^1.0"