diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 55efa3d..f4f44e5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
 
       - uses: purescript-contrib/setup-purescript@main
         with:
-          purescript: "0.14.0-rc3"
+          purescript: "0.14.0-rc5"
 
       - uses: actions/setup-node@v1
         with:
diff --git a/src/Data/Identity.purs b/src/Data/Identity.purs
index 36fd766..fd98d65 100644
--- a/src/Data/Identity.purs
+++ b/src/Data/Identity.purs
@@ -87,7 +87,6 @@ instance foldableIdentity :: Foldable Identity where
   foldMap f (Identity x) = f x
 
 instance foldable1Identity :: Foldable1 Identity where
-  fold1 (Identity x) = x
   foldMap1 f (Identity x) = f x
   foldl1 _ (Identity x) = x
   foldr1 _ (Identity x) = x