diff --git a/Project.toml b/Project.toml
index 0398eb6..2a08795 100644
--- a/Project.toml
+++ b/Project.toml
@@ -14,6 +14,7 @@ LsqFit = "2fda8390-95c7-5789-9bda-21331edee243"
 NamedTupleTools = "d9ec5142-1e00-5aa0-9d6a-321866360f50"
 Optim = "429524aa-4258-5aef-a3af-852621145aeb"
 PDMats = "90014a1f-27ba-587c-ab20-58faa44d9150"
+Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 QuadGK = "1fd47b50-473d-5c70-9696-f719f8f3bcdc"
 Query = "1a8c2f83-1ff3-5112-b086-8aa67b057ba1"
 RvSpectMLBase = "c48404b2-35ea-40e7-ac7f-06a53de703d6"