diff --git a/buildEvolve.js b/buildEvolve.js
deleted file mode 100644
index fb3baebe4..000000000
--- a/buildEvolve.js
+++ /dev/null
@@ -1,9 +0,0 @@
-require("esbuild")
-  .build({
-    logLevel: "info",
-    entryPoints: ["./src/main.js"],
-    bundle: true,
-    minify: true,
-    outfile: "evolve/main.js",
-  })
-  .catch(() => process.exit(1));
diff --git a/buildEvolve.mjs b/buildEvolve.mjs
new file mode 100644
index 000000000..358874319
--- /dev/null
+++ b/buildEvolve.mjs
@@ -0,0 +1,12 @@
+import * as esbuild from 'esbuild';
+
+await esbuild
+    .build({
+        logLevel: "info",
+        entryPoints: ["./src/main.js"],
+        bundle: true,
+        minify: true,
+        outfile: "evolve/main.js",
+    })
+    .catch(() => process.exit(1))
+;
diff --git a/buildWiki.js b/buildWiki.js
deleted file mode 100644
index 34e9ae8ad..000000000
--- a/buildWiki.js
+++ /dev/null
@@ -1,9 +0,0 @@
-require("esbuild")
-  .build({
-    logLevel: "info",
-    entryPoints: ["./src/wiki/wiki.js"],
-    bundle: true,
-    minify: true,
-    outfile: "wiki/wiki.js",
-  })
-  .catch(() => process.exit(1));
diff --git a/buildWiki.mjs b/buildWiki.mjs
new file mode 100644
index 000000000..8fdc2f577
--- /dev/null
+++ b/buildWiki.mjs
@@ -0,0 +1,12 @@
+import * as esbuild from 'esbuild';
+
+await esbuild
+    .build({
+        logLevel: "info",
+        entryPoints: ["./src/wiki/wiki.js"],
+        bundle: true,
+        minify: true,
+        outfile: "wiki/wiki.js",
+    })
+    .catch(() => process.exit(1))
+;
diff --git a/package.json b/package.json
index 0b56d27b0..d9b527769 100644
--- a/package.json
+++ b/package.json
@@ -6,10 +6,10 @@
   "scripts": {
     "build": "npm run evolve && npm run evolve-less && npm run wiki && npm run wiki-less",
     "build-win": "npm run evolve && npm run evolve-less-win && npm run wiki && npm run wiki-less-win",
-    "evolve": "node buildEvolve.js",
+    "evolve": "node buildEvolve.mjs",
     "evolve-less": "lessc src/evolve.less evolve/evolve-unminified.css && csso -i evolve/evolve-unminified.css -o evolve/evolve.css && rm evolve/evolve-unminified.css",
     "evolve-less-win": "lessc src/evolve.less evolve/evolve-unminified.css && csso -i evolve/evolve-unminified.css -o evolve/evolve.css && del evolve\\evolve-unminified.css",
-    "wiki": "node buildWiki.js",
+    "wiki": "node buildWiki.mjs",
     "wiki-less": "lessc src/wiki/wiki.less wiki/wiki-unminified.css && csso -i wiki/wiki-unminified.css -o wiki/wiki.css && rm wiki/wiki-unminified.css",
     "wiki-less-win": "lessc src/wiki/wiki.less wiki/wiki-unminified.css && csso -i wiki/wiki-unminified.css -o wiki/wiki.css && del wiki\\wiki-unminified.css",
     "serve": "servehere -c",