diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a6989e..de7c65c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ New features:
 Bugfixes:
 
 Other improvements:
+- Ensure all imported packages are in the spago.dhall file (#17 by @artemisSystem)
 
 ## [v5.0.0](https://github.com/purescript-contrib/purescript-fork/releases/tag/v5.0.0) - 2021-02-26
 
diff --git a/spago.dhall b/spago.dhall
index c37897a..094c294 100644
--- a/spago.dhall
+++ b/spago.dhall
@@ -1,5 +1,6 @@
 { name = "fork"
-, dependencies = [ "aff", "console", "effect", "psci-support" ]
+, dependencies =
+  [ "aff", "console", "effect", "prelude", "psci-support", "transformers" ]
 , packages = ./packages.dhall
 , sources = [ "src/**/*.purs", "test/**/*.purs" ]
 }