diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0263488..bb4a185 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ Notable changes to this project are documented in this file. The format is based
 
 Breaking changes:
 - Migrate FFI to ES modules (#218 by @kl0tl and @JordanMartinez)
+- Drop deprecated `group'` and `empty` (#219 by @JordanMartinez)
 
 New features:
 
diff --git a/src/Data/Array.purs b/src/Data/Array.purs
index d329594..6bc035a 100644
--- a/src/Data/Array.purs
+++ b/src/Data/Array.purs
@@ -100,7 +100,6 @@ module Data.Array
   , span
   , group
   , groupAll
-  , group'
   , groupBy
   , groupAllBy
 
@@ -148,7 +147,6 @@ import Data.Traversable (sequence, traverse)
 import Data.Tuple (Tuple(..), fst, snd)
 import Data.Unfoldable (class Unfoldable, unfoldr)
 import Partial.Unsafe (unsafePartial)
-import Prim.TypeError (class Warn, Text)
 
 -- | Convert an `Array` into an `Unfoldable` structure.
 toUnfoldable :: forall f. Unfoldable f => Array ~> f
@@ -983,10 +981,6 @@ group xs = groupBy eq xs
 groupAll :: forall a. Ord a => Array a -> Array (NonEmptyArray a)
 groupAll = groupAllBy compare
 
--- | Deprecated previous name of `groupAll`.
-group' :: forall a. Warn (Text "'group\'' is deprecated, use 'groupAll' instead") => Ord a => Array a -> Array (NonEmptyArray a)
-group' = groupAll
-
 -- | Group equal, consecutive elements of an array into arrays, using the
 -- | specified equivalence relation to determine equality.
 -- |
diff --git a/src/Data/Array/NonEmpty.purs b/src/Data/Array/NonEmpty.purs
index 67cca9e..332cd69 100644
--- a/src/Data/Array/NonEmpty.purs
+++ b/src/Data/Array/NonEmpty.purs
@@ -80,7 +80,6 @@ module Data.Array.NonEmpty
   , span
   , group
   , groupAll
-  , group'
   , groupBy
   , groupAllBy
 
@@ -134,7 +133,6 @@ import Data.Tuple (Tuple(..))
 import Data.Unfoldable (class Unfoldable)
 import Data.Unfoldable1 (class Unfoldable1, unfoldr1)
 import Partial.Unsafe (unsafePartial)
-import Prim.TypeError (class Warn, Text)
 import Unsafe.Coerce (unsafeCoerce)
 
 -- | Internal - adapt an Array transform to NonEmptyArray
@@ -424,10 +422,6 @@ group = unsafeAdapt $ A.group
 groupAll :: forall a. Ord a => NonEmptyArray a -> NonEmptyArray (NonEmptyArray a)
 groupAll = groupAllBy compare
 
--- | Deprecated previous name of `groupAll`.
-group' :: forall a. Warn (Text "'group\'' is deprecated, use 'groupAll' instead") => Ord a => NonEmptyArray a -> NonEmptyArray (NonEmptyArray a)
-group' = unsafeAdapt $ A.groupAll
-
 -- | Group equal, consecutive elements of an array into arrays, using the
 -- | specified equivalence relation to determine equality.
 -- |
diff --git a/src/Data/Array/ST.purs b/src/Data/Array/ST.purs
index 2726dd2..2817bee 100644
--- a/src/Data/Array/ST.purs
+++ b/src/Data/Array/ST.purs
@@ -8,7 +8,6 @@ module Data.Array.ST
   , run
   , withArray
   , new
-  , empty
   , peek
   , poke
   , modify
@@ -34,7 +33,6 @@ import Prelude
 import Control.Monad.ST as ST
 import Control.Monad.ST (ST, Region)
 import Data.Maybe (Maybe(..))
-import Prim.TypeError (class Warn, Text)
 
 -- | A reference to a mutable array.
 -- |
@@ -80,9 +78,6 @@ foreign import unsafeThaw :: forall h a. Array a -> ST h (STArray h a)
 -- | Create a new, empty mutable array.
 foreign import new :: forall h a. ST h (STArray h a)
 
-empty :: forall h a. Warn (Text "'Data.Array.ST.empty' is deprecated, use 'Data.Array.ST.new' instead") => ST h (STArray h a)
-empty = new
-
 -- | Create a mutable copy of an immutable array.
 foreign import thaw :: forall h a. Array a -> ST h (STArray h a)