diff --git a/spago.dhall b/spago.dhall
index a86c86c..067dcdc 100644
--- a/spago.dhall
+++ b/spago.dhall
@@ -3,7 +3,15 @@ Welcome to a Spago project!
 You can edit this file as you like.
 -}
 { name = "erl-process"
-, dependencies = [ "effect", "either", "foreign", "prelude" ]
+, dependencies =
+  [ "datetime"
+  , "effect"
+  , "either"
+  , "foreign"
+  , "integers"
+  , "prelude"
+  , "unsafe-coerce"
+  ]
 , packages = ./packages.dhall
 , sources = [ "src/**/*.purs" ]
 , backend = "purerl"