diff --git a/Project.toml b/Project.toml
index fd4a3e0..423b613 100644
--- a/Project.toml
+++ b/Project.toml
@@ -20,6 +20,7 @@ EOIInfiniteOptExt = "InfiniteOpt"
 
 [compat]
 DocStringExtensions = "0.9"
+InfiniteOpt = "0.6.4"
 JuMP = "1"
 ModelingToolkit = "11"
 Reexport = "1"