diff --git a/.tool-versions b/.tool-versions
index 2304456..a9cc8ed 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-gleam 0.27.0
+gleam 0.28.2
 erlang 25.2.2
 nodejs 18.14.0
diff --git a/CHANGELOG b/CHANGELOG
index baf8e57..f05d930 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,9 @@
+3.0.0
+-----
+
+* Update for Gleam 0.28.
+* Enable JavaScript target.
+
 2.0.0
 -----
 
diff --git a/gleam.toml b/gleam.toml
index 3bc2722..830a5b6 100644
--- a/gleam.toml
+++ b/gleam.toml
@@ -1,5 +1,5 @@
 name = "glentities"
-version = "2.0.0"
+version = "3.0.0"
 description = "HTML entity encoder/decoder for Gleam"
 
 # Fill out these fields if you intend to generate HTML documentation or publish
@@ -9,8 +9,10 @@ licences = ["MIT"]
 repository = { type = "gitlab", user = "Nicd", repo = "glentities" }
 links = []
 
+internal_modules = ["glentities/internal/*"]
+
 [dependencies]
-gleam_stdlib = "~> 0.27.0"
+gleam_stdlib = "~> 0.28.0"
 
 [dev-dependencies]
 gleeunit = "~> 0.10"
diff --git a/manifest.toml b/manifest.toml
index f358c18..a5115b3 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -2,10 +2,10 @@
 # You typically do not need to edit this file
 
 packages = [
-  { name = "gleam_stdlib", version = "0.27.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "9DBDD21B48C654182CDD8AA15ACF85E8E74A0438583C68BD7EF08BE89F999C6F" },
+  { name = "gleam_stdlib", version = "0.28.1", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "73F0A89FADE5022CBEF6D6C3551F9ADCE7054AFCE0CB1DC4C6D5AB4CA62D0111" },
   { name = "gleeunit", version = "0.10.1", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "ECEA2DE4BE6528D36AFE74F42A21CDF99966EC36D7F25DEB34D47DD0F7977BAF" },
 ]
 
 [requirements]
-gleam_stdlib = "~> 0.27.0"
+gleam_stdlib = "~> 0.28.0"
 gleeunit = "~> 0.10"
diff --git a/src/glentities.gleam b/src/glentities.gleam
index f1abb35..57366b1 100644
--- a/src/glentities.gleam
+++ b/src/glentities.gleam
@@ -2,6 +2,7 @@ import gleam/string
 import gleam/string_builder.{StringBuilder}
 import gleam/int
 import gleam/list
+import glentities/internal/string_utils
 
 pub type EncodeMode {
   /// Encode all characters that have a specified named entity using that name, except tab and newline.
@@ -2289,7 +2290,7 @@ pub fn decode_named(entity: String) {
 
 /// Encode characters in text as HTML entities with given encoding mode.
 pub fn encode(text: String, mode: EncodeMode) {
-  let input = normalise(text)
+  let input = string_utils.normalise(text)
   case mode {
     Named -> encode_named(input, string_builder.new())
     Hex -> encode_hex(input)
@@ -4058,7 +4059,3 @@ pub fn encode_named(text: String, acc: StringBuilder) -> String {
     }
   }
 }
-
-// Assuming here that it can never fail on UTF-8 string input
-external fn normalise(text: String) -> String =
-  "unicode" "characters_to_nfc_binary"
diff --git a/src/glentities/internal/string_utils.gleam b/src/glentities/internal/string_utils.gleam
new file mode 100644
index 0000000..0657c0a
--- /dev/null
+++ b/src/glentities/internal/string_utils.gleam
@@ -0,0 +1,13 @@
+if erlang {
+  pub external fn normalise(text: String) -> String =
+    "unicode" "characters_to_nfc_binary"
+}
+
+if javascript {
+  pub fn normalise(text: String) -> String {
+    normalise_js(text, "NFC")
+  }
+
+  pub external fn normalise_js(text: String, mode: String) -> String =
+    "" "String.prototype.normalize.call"
+}
diff --git a/test/glentities_test.gleam b/test/glentities_test.gleam
index 8748347..c172875 100644
--- a/test/glentities_test.gleam
+++ b/test/glentities_test.gleam
@@ -1,6 +1,7 @@
 import gleeunit
 import gleeunit/should
 import glentities
+import glentities/internal/string_utils
 
 pub fn main() {
   gleeunit.main()
@@ -38,7 +39,7 @@ pub fn encode_hex_test() {
 
 pub fn roundtrip_named_test() {
   let input =
-    normalise(
+    string_utils.normalise(
       "Ἰοὺ ἰού· τὰ πάντʼ ἂν ἐξήκοι σαφῆ. ஸ்றீனிவாஸ ராமானுஜன் ஐயங்கார் A ∩ B = { c : c ∈ A, c ∈ B }",
     )
 
@@ -52,7 +53,7 @@ pub fn roundtrip_named_test() {
 
 pub fn roundtrip_hex_test() {
   let input =
-    normalise(
+    string_utils.normalise(
       "Ἰοὺ ἰού· τὰ πάντʼ ἂν ἐξήκοι σαφῆ. ஸ்றீனிவாஸ ராமானுஜன் ஐயங்கார் A ∩ B = { c : c ∈ A, c ∈ B }",
     )
 
@@ -63,6 +64,3 @@ pub fn roundtrip_hex_test() {
     input,
   )
 }
-
-external fn normalise(text: String) -> String =
-  "unicode" "characters_to_nfc_binary"