diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0bb9605..580db60 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,6 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         emacs-version:
-          - 27.2
           - 28.2
           - 29.4
           - 30.1
@@ -32,9 +31,6 @@ jobs:
           - os: windows-latest
             emacs-version: snapshot
             experimental: true
-        exclude:
-          - os: macos-latest
-            emacs-version: 27.2
 
     steps:
     - uses: actions/checkout@v3
diff --git a/Eask b/Eask
index 6828be3..e69eae0 100644
--- a/Eask
+++ b/Eask
@@ -9,10 +9,10 @@
 
 (script "test" "echo \"Error: no test specified\" && exit 1")
 
-(source "gnu")
-(source "melpa")
+(source 'gnu)
+(source 'melpa)
 
-(depends-on "emacs" "27.1")
+(depends-on "emacs" "28.1")
 (depends-on "lsp-mode")
 
 (development
diff --git a/lsp-haskell.el b/lsp-haskell.el
index 6b9e6e8..b3a0ec2 100644
--- a/lsp-haskell.el
+++ b/lsp-haskell.el
@@ -1,7 +1,7 @@
 ;;; lsp-haskell.el --- Haskell support for lsp-mode -*- lexical-binding: t; -*-
 
 ;; Version: 1.1
-;; Package-Requires: ((emacs "27.1") (lsp-mode "3.0"))
+;; Package-Requires: ((emacs "28.1") (lsp-mode "3.0"))
 ;; Keywords: haskell
 ;; URL: https://github.com/emacs-lsp/lsp-haskell