diff --git a/scripts/post-install.js b/scripts/post-install.js
index fe8743b6..63e0abfc 100644
--- a/scripts/post-install.js
+++ b/scripts/post-install.js
@@ -75,7 +75,7 @@ async function populateLib() {
     const olmDstDir = path.join(libDir, "olm/");
     await fs.mkdir(olmDstDir);
     for (const file of ["olm.js", "olm.wasm", "olm_legacy.js"]) {
-        await fs.symlink(path.join(olmSrcDir, file), path.join(olmDstDir, file));
+        await fs.copyFile(path.join(olmSrcDir, file), path.join(olmDstDir, file));
     }
     // transpile node-html-parser to esm
     await fs.mkdir(path.join(libDir, "node-html-parser/"));
@@ -85,7 +85,7 @@ async function populateLib() {
     );
     // Symlink dompurify
     await fs.mkdir(path.join(libDir, "dompurify/"));
-    await fs.symlink(
+    await fs.copyFile(
         require.resolve('dompurify/dist/purify.es.js'),
         path.join(libDir, "dompurify/index.js")
     );