diff --git a/PKGBUILD b/PKGBUILD
index 62b0d66..6d8386b 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,6 +1,6 @@
 # Maintainer: Yi-Ting Shih <ytshih@konchin.com>
 pkgname=hl-base-env
-pkgver=1.1.0
+pkgver=1.1.1
 pkgrel=1
 pkgdesc="Base environment for konchin.com homelab"
 arch=(any)
@@ -21,6 +21,7 @@ source=(
   'install.sh'
   '90-editor.sh'
   'hl-rootca.crt'
+  'hl-package.asc'
   'timesyncd.conf'
 )
 
@@ -33,6 +34,7 @@ package() {
   install -Dm755 install.sh "$pkgdir/usr/lib/$pkgname/install.sh"
   install -Dm644 90-editor.sh "$pkgdir/etc/profile.d/90-editor.sh"
   install -Dm644 hl-rootca.crt "$pkgdir/usr/share/$pkgname/hl-rootca.crt"
+  install -Dm644 hl-package.asc "$pkgdir/usr/share/$pkgname/hl-package.asc"
   install -Dm644 timesyncd.conf "$pkgdir/etc/systemd/timesyncd.conf.d/$pkgname.conf"
 }
 sha256sums=('164d84a6db866f8445d8cd2b92a6513de4b8fd0204e4d127432416f13032890b'
@@ -41,4 +43,5 @@ sha256sums=('164d84a6db866f8445d8cd2b92a6513de4b8fd0204e4d127432416f13032890b'
             '9d3f3962e7088ed30962d171536d81e042169ee5c3c46e3f7995eb53b27e71f5'
             '8df871b1727d147ecc410de3aa6cf24e5bf046f1bfb4b600b60c40acd6c4fa9a'
             '1bcae0144eb86eae3948eae7299c99f0b1fc53d0f47884da6dfcaddab503a382'
+            'SKIP'
             '2e24060a81df174639d4f3743b42d1cde191724292fa5bd2433d088d7f49b4f9')
diff --git a/hl-base-env.install b/hl-base-env.install
index 382a11b..c8b2434 100644
--- a/hl-base-env.install
+++ b/hl-base-env.install
@@ -1,5 +1,8 @@
 _package_changed() {
   trust anchor --store /usr/share/hl-base-env/hl-rootca.crt
+  pacman-key --add /usr/share/hl-base-env/hl-package.asc && \
+    pacman-key --lsign-key \
+      'Yi-Ting Shih Packaging Infrastructure <ytshih@konchin.com>'
   update-ca-trust
 }
 
diff --git a/hl-package.asc b/hl-package.asc
new file mode 100644
index 0000000..ba222ee
--- /dev/null
+++ b/hl-package.asc
@@ -0,0 +1,14 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=6oKc
+-----END PGP PUBLIC KEY BLOCK-----