diff --git a/package.json b/package.json
index 0eecfb1..5e63bb9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@observablehq/runtime",
-  "version": "4.18.3",
+  "version": "4.18.4",
   "license": "ISC",
   "main": "dist/runtime.umd.js",
   "module": "src/index.js",