diff --git a/demo/package-lock.json b/demo/package-lock.json
index b51d8ba..22eb1f3 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -14,7 +14,7 @@
     },
     "..": {
       "name": "astro-netlify-cms",
-      "version": "0.5.3",
+      "version": "0.5.4",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -31,7 +31,7 @@
         "astro": "^1.5.2"
       },
       "peerDependencies": {
-        "astro": "^1.0.0 || ^2.0.0-beta"
+        "astro": "^1.0.0 || ^2.0.0-beta || ^3.0.0-beta"
       }
     },
     "node_modules/@ampproject/remapping": {
@@ -4633,9 +4633,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.24",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.24.tgz",
-      "integrity": "sha512-M0RzbcI0sO/XJNucsGjvWU9ERWxb/ytp1w6dKtxTKgixdtQDq4rmx/g8W1hnaheq9jgwL/oyEdH5Bc4WwJKMqg==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "dev": true,
       "funding": [
         {
@@ -9905,9 +9905,9 @@
       }
     },
     "postcss": {
-      "version": "8.4.24",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.24.tgz",
-      "integrity": "sha512-M0RzbcI0sO/XJNucsGjvWU9ERWxb/ytp1w6dKtxTKgixdtQDq4rmx/g8W1hnaheq9jgwL/oyEdH5Bc4WwJKMqg==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "dev": true,
       "requires": {
         "nanoid": "^3.3.6",