diff --git a/Project.toml b/Project.toml
index 1ce1217..bd23596 100644
--- a/Project.toml
+++ b/Project.toml
@@ -21,11 +21,12 @@ ClapeyronExt = "Clapeyron"
 MicthermExt = "MATLAB"
 
 [compat]
+Optim = "1"
 julia = "1.9"
 
 [extras]
-Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 Clapeyron = "7c7805af-46cc-48c9-995b-ed0ed2dc909a"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Test","Clapeyron"]
+test = ["Test", "Clapeyron"]