diff --git a/packages/webamp/js/components/MilkdropWindow/Visualizer.tsx b/packages/webamp/js/components/MilkdropWindow/Visualizer.tsx
index 99ca4154..aefb50d6 100644
--- a/packages/webamp/js/components/MilkdropWindow/Visualizer.tsx
+++ b/packages/webamp/js/components/MilkdropWindow/Visualizer.tsx
@@ -59,6 +59,11 @@ function Visualizer({ analyser, width, height }: Props) {
         meshWidth: 32,
         meshHeight: 24,
         pixelRatio: window.devicePixelRatio || 1,
+        // Webamp may support rendering Milkdrop presets from untrusted sources.
+        // By using `onlyUseWASM` here we instruct Butterchurn not to `eval`
+        // JavaScript code included in older Butterchurn preset `.json` files.
+        // https://jordaneldredge.com/blog/speeding-up-winamps-music-visualizer-with-webassembly/#security
+        onlyUseWASM: true,
       }
     );
     _visualizer.connectAudio(analyser);