diff --git a/cli/bin/grainrun.js b/cli/bin/grainrun.js
index 8532637ff..2775c3acc 100644
--- a/cli/bin/grainrun.js
+++ b/cli/bin/grainrun.js
@@ -10,7 +10,11 @@ const v8 = require("v8");
  *
  * This seems to work for our needs with Node 18, but we should be cautious when updating.
  */
-v8.setFlagsFromString("--experimental-wasm-return-call");
+if (
+  !process.versions.node.startsWith("22.") &&
+  !process.versions.node.startsWith("23.")
+)
+  v8.setFlagsFromString("--experimental-wasm-return-call");
 
 const { readFile } = require("fs/promises");
 const { WASI } = require("wasi");