diff --git a/.gitignore b/.gitignore
index 5c19b51..cb75ed6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,3 @@
-# probably not recommended
-Project.toml
-
 # Compiled FORTRAN libraries
 *.so
 
diff --git a/Project.toml b/Project.toml
new file mode 100644
index 0000000..b8e36b9
--- /dev/null
+++ b/Project.toml
@@ -0,0 +1,12 @@
+[deps]
+Arpack = "7d9fca2a-8960-54d3-9f78-7d1dccf2cb97"
+DifferentialEquations = "0c46a032-eb83-5123-abaf-570d42b7fbaa"
+FastGaussQuadrature = "442a2c76-b920-505d-bb47-c5924d526838"
+HDF5 = "f67ccb44-e63f-5c2f-98bd-6dc0ccc4ba2f"
+LRUCache = "8ac3fa9e-de4c-5943-b1dc-09c6b5f20637"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
+QuadGK = "1fd47b50-473d-5c70-9696-f719f8f3bcdc"
+SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
+WignerSymbols = "9f57e263-0b3d-5e2e-b1be-24f2bb48858b"