diff --git a/.travis.yml b/.travis.yml
index 6da455e..b339f18 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,12 +9,9 @@ install:
   - curl --location --output $HOME/purescript.tar.gz https://github.com/purescript/purescript/releases/download/$TAG/linux64.tar.gz
   - tar -xvf $HOME/purescript.tar.gz -C $HOME/
   - chmod a+x $HOME/purescript
-  - npm install -g bower
   - npm install
-  - bower install --production
 script:
   - npm run -s build
-  - bower install
   - npm run -s test
 after_success:
   - >-
diff --git a/bower.json b/bower.json
index 93f139b..aec0e42 100644
--- a/bower.json
+++ b/bower.json
@@ -1,40 +1,29 @@
 {
-  "name": "purescript-argonaut-codecs",
-  "homepage": "https://github.com/purescript-contrib/purescript-argonaut-codecs",
-  "authors": [
-    "Maxim Zimaliev <zimaliev@yandex.ru>",
-    "Hardy Jones <>",
-    "John A. De Goes <john@degoes.net>"
-  ],
-  "description": "Codecs for purescript argonaut",
-  "keywords": [
-    "purescript",
-    "json",
-    "argonaut",
-    "encode",
-    "decode",
-    "codec",
-    "combinators"
-  ],
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/purescript-contrib/purescript-argonaut-codecs.git"
-  },
-  "license": "MIT",
-  "dependencies": {
-    "purescript-argonaut-core": "^5.0.0",
-    "purescript-generics-rep": "^6.1.1",
-    "purescript-integers": "^4.0.0",
-    "purescript-maybe": "^4.0.0",
-    "purescript-ordered-collections": "^1.0.0",
-    "purescript-foreign-object": "^2.0.0",
-    "purescript-record": "^2.0.0",
-    "purescript-nonempty": "^5.0.0",
-    "purescript-arrays": "^5.1.0",
-    "purescript-identity": "^4.1.0"
-  },
-  "devDependencies": {
-    "purescript-assert": "^4.1.0",
-    "purescript-quickcheck": "^6.1.0"
-  }
+    "name": "purescript-argonaut-codecs",
+    "license": [
+        "MIT"
+    ],
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/purescript-contrib/purescript-argonaut-codecs"
+    },
+    "ignore": [
+        "**/.*",
+        "node_modules",
+        "bower_components",
+        "output"
+    ],
+    "dependencies": {
+        "purescript-argonaut-core": "^v5.0.2",
+        "purescript-arrays": "^v5.3.1",
+        "purescript-effect": "^v2.0.1",
+        "purescript-foreign-object": "^v2.0.3",
+        "purescript-generics-rep": "^v6.1.1",
+        "purescript-identity": "^v4.1.0",
+        "purescript-integers": "^v4.0.0",
+        "purescript-maybe": "^v4.0.1",
+        "purescript-nonempty": "^v5.0.0",
+        "purescript-ordered-collections": "^v1.6.1",
+        "purescript-record": "^v2.0.2"
+    }
 }
diff --git a/package.json b/package.json
index e085a1e..2a58021 100644
--- a/package.json
+++ b/package.json
@@ -1,13 +1,13 @@
 {
   "private": true,
   "scripts": {
-    "clean": "rimraf output && rimraf .pulp-cache",
-    "build": "pulp build -- --censor-lib --strict",
-    "test": "pulp test"
+    "clean": "rimraf output",
+    "build": "spago build",
+    "test": "spago -x test/test.dhall test"
   },
   "devDependencies": {
-    "pulp": "^14.0.0",
     "purescript-psa": "^0.7.3",
-    "rimraf": "^3.0.2"
+    "rimraf": "^3.0.2",
+    "spago": "^0.15.3"
   }
 }
diff --git a/packages.dhall b/packages.dhall
new file mode 100644
index 0000000..2dc372e
--- /dev/null
+++ b/packages.dhall
@@ -0,0 +1,8 @@
+let upstream =
+      https://github.com/purescript/package-sets/releases/download/psc-0.13.8-20200615/packages.dhall sha256:5d0cfad9408c84db0a3fdcea2d708f9ed8f64297e164dc57a7cf6328706df93a
+
+let overrides = {=}
+
+let additions = {=}
+
+in  upstream // overrides // additions
diff --git a/spago.dhall b/spago.dhall
new file mode 100644
index 0000000..4539016
--- /dev/null
+++ b/spago.dhall
@@ -0,0 +1,19 @@
+{ name = "argonaut-codecs"
+, license = "MIT"
+, repository = "https://github.com/purescript-contrib/purescript-argonaut-codecs"
+, dependencies =
+  [ "argonaut-core"
+  , "arrays"
+  , "effect"
+  , "foreign-object"
+  , "generics-rep"
+  , "identity"
+  , "integers"
+  , "maybe"
+  , "nonempty"
+  , "ordered-collections"
+  , "record"
+  ]
+, packages = ./packages.dhall
+, sources = [ "src/**/*.purs" ]
+}
diff --git a/test/test.dhall b/test/test.dhall
new file mode 100644
index 0000000..5ddaef9
--- /dev/null
+++ b/test/test.dhall
@@ -0,0 +1,5 @@
+let conf = ../spago.dhall
+in conf //
+  { dependencies = conf.dependencies # [ "assert", "console", "quickcheck", "psci-support" ]
+  , sources = conf.sources # [ "test/**/*.purs" ]
+  }