diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fc54710..76cf55a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,58 +9,29 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
-      - name: Set up PureScript toolchain
+      - name: Set up a PureScript toolchain
         uses: purescript-contrib/setup-purescript@main
         with:
-          purescript: "unstable"
+          purescript: "latest"
           purs-tidy: "latest"
+          spago: "unstable"
 
       - name: Cache PureScript dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
-          key: ${{ runner.os }}-spago-${{ hashFiles('**/*.dhall') }}
+          key: ${{ runner.os }}-spago-${{ hashFiles('**/spago.lock') }}
           path: |
             .spago
             output
 
-      - name: Set up Node toolchain
-        uses: actions/setup-node@v2
-        with:
-          node-version: "14.x"
-
-      - name: Cache NPM dependencies
-        uses: actions/cache@v2
-        env:
-          cache-name: cache-node-modules
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package.json') }}
-          restore-keys: |
-            ${{ runner.os }}-build-${{ env.cache-name }}-
-            ${{ runner.os }}-build-
-            ${{ runner.os }}-
-
-      - name: Install NPM dependencies
-        run: npm install
-
-      - name: Build the project
-        run: npm run build
+      - name: Build source
+        run: spago build --censor-stats --strict --pedantic-packages
 
       - name: Run tests
-        run: npm run test
+        run: spago test --offline --censor-stats --strict --pedantic-packages -- --censor-codes=UserDefinedWarning
 
-      - name: Check formatting
+      - name: Verify formatting
         run: purs-tidy check src test
-
-      - name: Verify Bower & Pulp
-        run: |
-          npm install bower pulp@16.0.0-0
-          npx bower install
-          npx pulp build -- --censor-lib --strict
-          if [ -d "test" ]; then
-            npx pulp test
-          fi
diff --git a/bower.json b/bower.json
index 2e2ae8d..77d2a81 100644
--- a/bower.json
+++ b/bower.json
@@ -21,36 +21,5 @@
     "bower.json",
     "gulpfile.js",
     "package.json"
-  ],
-  "dependencies": {
-    "purescript-aff": "^7.0.0",
-    "purescript-argonaut-core": "^7.0.0",
-    "purescript-arraybuffer-types": "^3.0.2",
-    "purescript-arrays": "^7.0.0",
-    "purescript-console": "^6.0.0",
-    "purescript-control": "^6.0.0",
-    "purescript-datetime": "^6.0.0",
-    "purescript-effect": "^4.0.0",
-    "purescript-either": "^6.0.0",
-    "purescript-exceptions": "^6.0.0",
-    "purescript-foldable-traversable": "^6.0.0",
-    "purescript-foreign": "^7.0.0",
-    "purescript-foreign-object": "^4.0.0",
-    "purescript-form-urlencoded": "^7.0.0",
-    "purescript-functions": "^6.0.0",
-    "purescript-http-methods": "^6.0.0",
-    "purescript-lists": "^7.0.0",
-    "purescript-maybe": "^6.0.0",
-    "purescript-media-types": "^6.0.0",
-    "purescript-newtype": "^5.0.0",
-    "purescript-nullable": "^6.0.0",
-    "purescript-prelude": "^6.0.0",
-    "purescript-transformers": "^6.0.0",
-    "purescript-web-dom": "^6.0.0",
-    "purescript-web-file": "^4.0.0",
-    "purescript-web-xhr": "^5.0.0"
-  },
-  "devDependencies": {
-    "purescript-psci-support": "^6.0.0"
-  }
+  ]
 }
diff --git a/package.json b/package.json
index f0133e3..af79276 100644
--- a/package.json
+++ b/package.json
@@ -1,13 +1,13 @@
 {
   "private": true,
   "scripts": {
-    "build": "eslint src && spago build --purs-args '--censor-lib --strict'"
+    "build": "eslint src && spago build --censor-stats --strict --pedantic-packages"
   },
   "devDependencies": {
-    "body-parser": "^1.19.0",
-    "eslint": "^7.10.0",
-    "express": "^4.17.1",
-    "purescript-psa": "^0.8.2",
-    "xhr2": "^0.2.0"
+    "body-parser": "^1.20.3",
+    "eslint": "^9.12.0",
+    "express": "^4.21.1",
+    "purescript-psa": "^0.9.0",
+    "xhr2": "^0.2.1"
   }
 }
diff --git a/packages.dhall b/packages.dhall
deleted file mode 100644
index 582d6d3..0000000
--- a/packages.dhall
+++ /dev/null
@@ -1,4 +0,0 @@
-let upstream =
-      https://raw.githubusercontent.com/purescript/package-sets/prepare-0.15/src/packages.dhall
-
-in  upstream
diff --git a/spago.dhall b/spago.dhall
deleted file mode 100644
index 81a57e7..0000000
--- a/spago.dhall
+++ /dev/null
@@ -1,32 +0,0 @@
-{ name = "affjax"
-, dependencies =
-  [ "aff"
-  , "argonaut-core"
-  , "arraybuffer-types"
-  , "arrays"
-  , "console"
-  , "control"
-  , "datetime"
-  , "effect"
-  , "either"
-  , "exceptions"
-  , "foldable-traversable"
-  , "foreign"
-  , "foreign-object"
-  , "form-urlencoded"
-  , "functions"
-  , "http-methods"
-  , "lists"
-  , "maybe"
-  , "media-types"
-  , "newtype"
-  , "nullable"
-  , "prelude"
-  , "transformers"
-  , "web-dom"
-  , "web-file"
-  , "web-xhr"
-  ]
-, packages = ./packages.dhall
-, sources = [ "src/**/*.purs" ]
-}
diff --git a/spago.yaml b/spago.yaml
new file mode 100644
index 0000000..35b6867
--- /dev/null
+++ b/spago.yaml
@@ -0,0 +1,36 @@
+package:
+  name: affjax
+  publish:
+    license: Apache-2.0
+    version: 13.0.0
+    location:
+      githubOwner: purescript-contrib
+      githubRepo: purescript-affjax
+  dependencies:
+    - aff
+    - argonaut-core
+    - arraybuffer-types
+    - arrays
+    - control
+    - datetime
+    - either
+    - exceptions
+    - foldable-traversable
+    - foreign
+    - form-urlencoded
+    - functions
+    - http-methods
+    - lists
+    - maybe
+    - media-types
+    - newtype
+    - nullable
+    - prelude
+    - transformers
+    - web-dom
+    - web-file
+    - web-xhr
+workspace:
+  extraPackages: {}
+  packageSet:
+    registry: 60.5.0
diff --git a/test/Test/Main.purs b/test/Test/Main.purs
new file mode 100644
index 0000000..3590d4d
--- /dev/null
+++ b/test/Test/Main.purs
@@ -0,0 +1,11 @@
+module Test.Main where
+
+import Prelude
+
+import Effect (Effect)
+import Effect.Class.Console (log)
+
+main :: Effect Unit
+main = do
+  log "🍕"
+  log "You should add some tests."