diff --git a/src/suppress-warnings.cts b/src/suppress-warnings.cts
index 5a9cce2a3..b34c871bd 100644
--- a/src/suppress-warnings.cts
+++ b/src/suppress-warnings.cts
@@ -1,6 +1,10 @@
 // Deprecated: Move to preflight.cts & delete entry-point in next major
 
 const ignoreWarnings = new Set([
+
+	// v18.0.0
+	'Custom ESM Loaders is an experimental feature. This feature could change at any time',
+
 	// Changed in Node v18.13.0 via https://github.com/nodejs/node/pull/45424
 	'Custom ESM Loaders is an experimental feature and might change at any time',
 
diff --git a/tests/utils/node-versions.ts b/tests/utils/node-versions.ts
index dd53ce962..ba824b3a7 100644
--- a/tests/utils/node-versions.ts
+++ b/tests/utils/node-versions.ts
@@ -8,6 +8,7 @@ export const nodeVersions = [
 			? [
 				'20',
 				'18',
+				'18.0.0',
 			] as const
 			: [] as const
 	),