diff --git a/Formula/h/haskell-language-server.rb b/Formula/h/haskell-language-server.rb
index b9f516e087375..de25ae96d44d7 100644
--- a/Formula/h/haskell-language-server.rb
+++ b/Formula/h/haskell-language-server.rb
@@ -1,8 +1,8 @@
 class HaskellLanguageServer < Formula
   desc "Integration point for ghcide and haskell-ide-engine. One IDE to rule them all"
   homepage "https://github.com/haskell/haskell-language-server"
-  url "https://github.com/haskell/haskell-language-server/archive/refs/tags/2.8.0.0.tar.gz"
-  sha256 "af6c76d21d577c2712ed7106d8ba00ec734c9285de58293f78e1cc1cc203d154"
+  url "https://github.com/haskell/haskell-language-server/archive/refs/tags/2.9.0.0.tar.gz"
+  sha256 "8cb7e73c64977764fde62df2ccd9241410276229585c19615777d766a198a6d0"
   license "Apache-2.0"
   head "https://github.com/haskell/haskell-language-server.git", branch: "master"