diff --git a/bower.json b/bower.json
index b81cb2b..b589d1a 100644
--- a/bower.json
+++ b/bower.json
@@ -23,12 +23,9 @@
     "tests"
   ],
   "dependencies": {
-    "purescript-prelude": "^2.0.0",
-    "purescript-aff": "^2.0.0",
-    "purescript-lists": "^3.2.0",
-    "purescript-foldable-traversable": "^2.0.0"
-  },
-  "devDependencies": {
-    "purescript-psci-support": "^2.0.0"
+    "purescript-prelude": "^3.0.0",
+    "purescript-aff": "^3.0.0",
+    "purescript-lists": "^4.0.0",
+    "purescript-foldable-traversable": "^3.0.0"
   }
 }
diff --git a/package.json b/package.json
index f0699a0..15a18e6 100644
--- a/package.json
+++ b/package.json
@@ -8,9 +8,9 @@
     "test": "pulp test"
   },
   "dependencies": {
-    "purescript": "^0.10.2",
-    "purescript-psa": "^0.4.0",
+    "purescript": "^0.11.1",
+    "purescript-psa": "^0.5.0",
     "rimraf": "^2.5.4",
-    "pulp": "^10.0.0"
+    "pulp": "^11.0.0"
   }
 }
diff --git a/src/Control/Monad/Aff/Bus.purs b/src/Control/Monad/Aff/Bus.purs
index 0cae5cd..fc008c3 100644
--- a/src/Control/Monad/Aff/Bus.purs
+++ b/src/Control/Monad/Aff/Bus.purs
@@ -42,7 +42,7 @@ import Data.Tuple (Tuple(..))
 
 data Cap
 
-data Bus (r ∷ # *) a = Bus (AVar a) (AVar (List (AVar a)))
+data Bus (r ∷ # Type) a = Bus (AVar a) (AVar (List (AVar a)))
 
 type BusR = BusR' ()
 
@@ -59,7 +59,7 @@ make ∷ ∀ eff a. AffAVar eff (BusRW a)
 make = do
   cell ∷ AVar a ← makeVar
   consumers ∷ AVar (List (AVar a)) ← makeVar' mempty
-  forkAff $ forever do
+  _ ← forkAff $ forever do
     res ← takeVar cell
     vars ← takeVar consumers
     putVar consumers mempty
diff --git a/test/Main.purs b/test/Main.purs
index 5d4dfe9..b87be33 100644
--- a/test/Main.purs
+++ b/test/Main.purs
@@ -25,7 +25,6 @@ import Control.Monad.Eff (Eff)
 import Control.Monad.Eff.Console (CONSOLE)
 import Control.Monad.Eff.Exception (EXCEPTION, error, message)
 import Control.Monad.Error.Class (throwError)
-import Control.Monad.Rec.Class (forever)
 import Data.Either (Either(..))
 
 type Effects eff =
@@ -53,8 +52,8 @@ test_readWrite = do
           modifyVar (_ + n) avar
           proc
 
-  forkAff proc
-  forkAff proc
+  void $ forkAff proc
+  void $ forkAff proc
 
   Bus.write 1 bus
   Bus.write 2 bus
@@ -64,7 +63,7 @@ test_readWrite = do
   assert <<< eq 212 =<< peekVar avar
   log "OK"
 
-main ∷ Eff (Effects (err ∷ EXCEPTION)) Unit
+main ∷ Eff (Effects (exception ∷ EXCEPTION)) Unit
 main = void $ launchAff do
   log "Testing read/write/kill..."
   test_readWrite