diff --git a/.changeset/thick-mails-repeat.md b/.changeset/thick-mails-repeat.md
new file mode 100644
index 000000000..780d804f7
--- /dev/null
+++ b/.changeset/thick-mails-repeat.md
@@ -0,0 +1,5 @@
+---
+'@cloudflare/next-on-pages': patch
+---
+
+bump package-manager-manager to 0.1.3
diff --git a/package-lock.json b/package-lock.json
index 28f414078..7b442d0b3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14393,9 +14393,9 @@
 			}
 		},
 		"node_modules/package-manager-manager": {
-			"version": "0.1.2",
-			"resolved": "https://registry.npmjs.org/package-manager-manager/-/package-manager-manager-0.1.2.tgz",
-			"integrity": "sha512-uMRn4geEUBbdTvz+sj+tZaIIMWsbOQG5yOJD2KeeqXbmfoNxUBNOWyWM0afLDPDrl7ZTJ8//hJ7V2BhlNl9WiQ==",
+			"version": "0.1.3",
+			"resolved": "https://registry.npmjs.org/package-manager-manager/-/package-manager-manager-0.1.3.tgz",
+			"integrity": "sha512-dRIqYwFfhkPxwwODejHZybnD5L1JSyK7u7LKiYYlTaUq6BaTH1iFHhJ7RFft86Q3n3pqQhJCjwa6UtsWPkTyDA==",
 			"dependencies": {
 				"js-yaml": "^4.1.0",
 				"shellac": "^0.8.0"
@@ -20530,7 +20530,7 @@
 			}
 		},
 		"packages/eslint-plugin-next-on-pages": {
-			"version": "1.6.3",
+			"version": "1.7.0",
 			"license": "MIT",
 			"dependencies": {
 				"@types/estree-jsx": "^1.0.0",
@@ -20569,7 +20569,7 @@
 		},
 		"packages/next-on-pages": {
 			"name": "@cloudflare/next-on-pages",
-			"version": "1.6.3",
+			"version": "1.7.0",
 			"license": "MIT",
 			"dependencies": {
 				"acorn": "^8.8.0",
@@ -20579,7 +20579,7 @@
 				"cookie": "^0.5.0",
 				"esbuild": "^0.15.3",
 				"js-yaml": "^4.1.0",
-				"package-manager-manager": "^0.1.2",
+				"package-manager-manager": "^0.1.3",
 				"pcre-to-regexp": "^1.1.0",
 				"semver": "^7.5.2",
 				"zod": "^3.22.3",
@@ -22369,7 +22369,7 @@
 				"js-yaml": "^4.1.0",
 				"mock-fs": "^5.2.0",
 				"p-limit": "^4.0.0",
-				"package-manager-manager": "^0.1.2",
+				"package-manager-manager": "^0.1.3",
 				"pcre-to-regexp": "^1.1.0",
 				"prettier": "^2.8.4",
 				"semver": "^7.5.2",
@@ -29869,9 +29869,9 @@
 			}
 		},
 		"package-manager-manager": {
-			"version": "0.1.2",
-			"resolved": "https://registry.npmjs.org/package-manager-manager/-/package-manager-manager-0.1.2.tgz",
-			"integrity": "sha512-uMRn4geEUBbdTvz+sj+tZaIIMWsbOQG5yOJD2KeeqXbmfoNxUBNOWyWM0afLDPDrl7ZTJ8//hJ7V2BhlNl9WiQ==",
+			"version": "0.1.3",
+			"resolved": "https://registry.npmjs.org/package-manager-manager/-/package-manager-manager-0.1.3.tgz",
+			"integrity": "sha512-dRIqYwFfhkPxwwODejHZybnD5L1JSyK7u7LKiYYlTaUq6BaTH1iFHhJ7RFft86Q3n3pqQhJCjwa6UtsWPkTyDA==",
 			"requires": {
 				"js-yaml": "^4.1.0",
 				"shellac": "^0.8.0"
diff --git a/packages/next-on-pages/package.json b/packages/next-on-pages/package.json
index 2a34dee94..b39f6437e 100644
--- a/packages/next-on-pages/package.json
+++ b/packages/next-on-pages/package.json
@@ -40,7 +40,7 @@
 		"cookie": "^0.5.0",
 		"esbuild": "^0.15.3",
 		"js-yaml": "^4.1.0",
-		"package-manager-manager": "^0.1.2",
+		"package-manager-manager": "^0.1.3",
 		"pcre-to-regexp": "^1.1.0",
 		"semver": "^7.5.2",
 		"zod": "^3.22.3",
@@ -61,12 +61,12 @@
 		"@types/node": "^20.1.4",
 		"dedent-tabs": "^0.10.3",
 		"eslint": "^8.35.0",
+		"image-to-base64": "^2.2.0",
 		"mock-fs": "^5.2.0",
 		"p-limit": "^4.0.0",
 		"prettier": "^2.8.4",
 		"typescript": "^5.0.4",
 		"vitest": "^0.32.2",
-		"vitest-environment-miniflare": "^2.13.0",
-		"image-to-base64": "^2.2.0"
+		"vitest-environment-miniflare": "^2.13.0"
 	}
 }
diff --git a/packages/next-on-pages/src/buildApplication/buildVercelOutput.ts b/packages/next-on-pages/src/buildApplication/buildVercelOutput.ts
index 9f863e73d..4f656bf5d 100644
--- a/packages/next-on-pages/src/buildApplication/buildVercelOutput.ts
+++ b/packages/next-on-pages/src/buildApplication/buildVercelOutput.ts
@@ -133,7 +133,7 @@ async function runVercelBuild(
 	pm: PackageManager,
 	additionalArgs: string[] = [],
 ): Promise<void> {
-	if (pm.name === 'yarn' && pm.version.startsWith('1.')) {
+	if (pm.name === 'yarn' && pm.version?.startsWith('1.')) {
 		const vercelVersion = await getPackageVersionOrNull(pm, 'vercel');
 
 		if (!vercelVersion) {