diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7d89469..382a41e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,6 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         emacs-version:
-          - 27.2
           - 28.2
           - 29.4
           - 30.1
@@ -26,9 +25,6 @@ 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 ba03221..e629984 100644
--- a/Eask
+++ b/Eask
@@ -11,10 +11,10 @@
 
 (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 "dash")
 (depends-on "f")
 (depends-on "ht")
diff --git a/lsp-treemacs.el b/lsp-treemacs.el
index e443819..8ff85d7 100644
--- a/lsp-treemacs.el
+++ b/lsp-treemacs.el
@@ -4,7 +4,7 @@
 
 ;; Author: Ivan Yonchovski
 ;; Keywords: languages
-;; Package-Requires: ((emacs "27.1") (dash "2.18.0") (f "0.20.0") (ht "2.0") (treemacs "2.5") (lsp-mode "6.0"))
+;; Package-Requires: ((emacs "28.1") (dash "2.18.0") (f "0.20.0") (ht "2.0") (treemacs "2.5") (lsp-mode "6.0"))
 ;; Homepage: https://github.com/emacs-lsp/lsp-treemacs
 ;; Version: 0.5