diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 43d2897..b6ebf3a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,6 +13,8 @@ jobs:
       - uses: actions/checkout@v2
 
       - uses: purescript-contrib/setup-purescript@main
+        with:
+          purescript: "unstable"
 
       - uses: actions/setup-node@v1
         with:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index aab5e90..2496610 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ Notable changes to this project are documented in this file. The format is based
 ## [Unreleased]
 
 Breaking changes:
+- Update project and deps to PureScript v0.15.0 (#66 by @JordanMartinez)
 
 New features:
 
diff --git a/bower.json b/bower.json
index e92d057..cb214a4 100644
--- a/bower.json
+++ b/bower.json
@@ -16,14 +16,14 @@
     "package.json"
   ],
   "dependencies": {
-    "purescript-control": "^5.0.0",
-    "purescript-invariant": "^5.0.0",
-    "purescript-maybe": "^5.0.0",
-    "purescript-prelude": "^5.0.0"
+    "purescript-control": "master",
+    "purescript-invariant": "master",
+    "purescript-maybe": "master",
+    "purescript-prelude": "master"
   },
   "devDependencies": {
-    "purescript-assert": "^5.0.0",
-    "purescript-console": "^5.0.0",
-    "purescript-effect": "^3.0.0"
+    "purescript-assert": "master",
+    "purescript-console": "master",
+    "purescript-effect": "master"
   }
 }
diff --git a/package.json b/package.json
index d3602c1..c8e10e0 100644
--- a/package.json
+++ b/package.json
@@ -6,8 +6,8 @@
     "test": "pulp test"
   },
   "devDependencies": {
-    "pulp": "^15.0.0",
-    "purescript-psa": "^0.8.0",
+    "pulp": "16.0.0-0",
+    "purescript-psa": "^0.8.2",
     "rimraf": "^3.0.2"
   }
 }