diff --git a/Project.toml b/Project.toml
index 6aecf25..eaa41d1 100644
--- a/Project.toml
+++ b/Project.toml
@@ -14,12 +14,12 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 [compat]
 JuMP = "1.2"
 LinearAlgebra = "1.6"
-MathOptInterface = "^1.7"
+MathOptInterface = "1.17"
 NLPModels = "0.18, 0.19, 0.20, 0.21"
 Printf = "1.6"
 SolverCore = "0.3"
 SparseArrays = "1.6"
-julia = "^1.6"
+julia = "1.6"
 
 [extras]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"