diff --git a/Project.toml b/Project.toml
index 8378cb1..c206030 100644
--- a/Project.toml
+++ b/Project.toml
@@ -26,7 +26,7 @@ AtomsCalculators = "0.2.3"
 DocStringExtensions = "0.9"
 LineSearches = "7"
 Optimization = "3"
-OptimizationOptimJL = "0.3"
+OptimizationOptimJL = "0.3, 0.4"
 PrettyTables = "2"
 StaticArrays = "1"
 TestItemRunner = "0.2"