diff --git a/.tool-versions b/.tool-versions
index fc13219..435f934 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-gleam 0.33.0
+gleam 1.0.0
 erlang 26.1.2
 nodejs 18.14.0
diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 282a958..e950d41 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,3 +1,9 @@
+6.1.0
+-----
+
+* The HTML encoder has been made overwhelmingly faster in both the Erlang and JavaScript targets.
+  Thanks to Giacomo Cavalieri for the contribution!
+
 6.0.0
 -----
 
diff --git a/gleam.toml b/gleam.toml
index ea41c7f..3637c9a 100644
--- a/gleam.toml
+++ b/gleam.toml
@@ -1,5 +1,5 @@
 name = "glentities"
-version = "6.0.0"
+version = "6.1.0"
 description = "HTML entity encoder/decoder for Gleam"
 
 # Fill out these fields if you intend to generate HTML documentation or publish