diff --git a/packages.dhall b/packages.dhall
deleted file mode 100644
index 4a853ce..0000000
--- a/packages.dhall
+++ /dev/null
@@ -1,5 +0,0 @@
-let upstream =
-      https://github.com/purescript/package-sets/releases/download/psc-0.15.10-20230810/packages.dhall
-        sha256:df6a4ae3eeea15089d731b19b4284bfa355f83a9d0504768701c1a32ca9fd080
-
-in  upstream
diff --git a/spago.dhall b/spago.dhall
deleted file mode 100644
index 4ab8236..0000000
--- a/spago.dhall
+++ /dev/null
@@ -1,14 +0,0 @@
-{ name = "spec-discovery"
-, repository = "https://github.com/purescript-spec/purescript-spec-discovery.git"
-, license = "MPL-2.0"
-, dependencies =
-  [ "aff"
-  , "aff-promise"
-  , "effect"
-  , "foldable-traversable"
-  , "prelude"
-  , "spec"
-  ]
-, packages = ./packages.dhall
-, sources = [ "src/**/*.purs", "test/**/*.purs" ]
-}
diff --git a/spago.yaml b/spago.yaml
new file mode 100644
index 0000000..dd70e1b
--- /dev/null
+++ b/spago.yaml
@@ -0,0 +1,24 @@
+package:
+  dependencies:
+    [
+      { aff: ">=7.1.0 <8.0.0" },
+      { aff-promise: ">=4.0.0 <5.0.0" },
+      { effect: ">=4.0.0 <5.0.0" },
+      { foldable-traversable: ">=6.0.0 <7.0.0" },
+      { prelude: ">=6.0.1 <7.0.0" },
+      { spec: ">=7.5.5 <8.0.0" }
+    ]
+  name: spec-discovery
+  publish:
+    version: 8.2.1
+    license: MPL-2.0
+    location:
+      githubOwner: "f-o-a-m"
+      githubRepo: purescript-optparse
+  test:
+    dependencies: []
+    main: Test.Main
+workspace:
+  extra_packages: {}
+  package_set:
+    registry: 43.3.0