diff --git a/Project.toml b/Project.toml
index ee82c9bb4..0aa661d70 100644
--- a/Project.toml
+++ b/Project.toml
@@ -66,12 +66,14 @@ FredData = "0.3"
 GR = "0.42.0, 0.44.0"
 HDF5 = "0.12"
 JLD2 = "^0.1.3"
+MAT = "0.6, 0.7"
 MbedTLS = "^0.6.8"
 Missings = "0.4"
 ModelConstructors = "^0.1.4"
 Nullables = "^0.0.8"
 Optim = "0.16, 0.17, 0.18, 0.19"
 OrderedCollections = "^1.1.0"
+PackageCompiler = "^0.6.4"
 PDMats = "^0.9.10"
 Plots = "0.19, 0.20, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28"
 RecipesBase = "0.5, 0.7"