diff --git a/.changeset/chilly-chairs-smash.md b/.changeset/chilly-chairs-smash.md
new file mode 100644
index 00000000..4c3e2a61
--- /dev/null
+++ b/.changeset/chilly-chairs-smash.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/netlify': patch
+---
+
+Fixes a typo for the peerDependency range in package.json, which prevents upgrade to Astro 4.0.
diff --git a/packages/netlify/package.json b/packages/netlify/package.json
index f06452e8..fd865622 100644
--- a/packages/netlify/package.json
+++ b/packages/netlify/package.json
@@ -42,7 +42,7 @@
     "esbuild": "^0.19.5"
   },
   "peerDependencies": {
-    "astro": "^3.0.0 | ^4.0.0"
+    "astro": "^3.0.0 || ^4.0.0"
   },
   "devDependencies": {
     "@netlify/edge-functions": "^2.0.0",