diff --git a/packages/page-calendar/src/util.ts b/packages/page-calendar/src/util.ts
index 3b381b99b8..4ec9e86697 100644
--- a/packages/page-calendar/src/util.ts
+++ b/packages/page-calendar/src/util.ts
@@ -59,6 +59,6 @@ export function dateCalendarFormat (date: Date): string {
   return new Date(date)
     .toISOString()
     .split('.')[0]
-    .replaceAll('-', '')
-    .replaceAll(':', '') + 'Z';
+    .replace(/-/g, '')
+    .replace(/:/g, '') + 'Z';
 }
diff --git a/packages/page-files/src/UploadModal.tsx b/packages/page-files/src/UploadModal.tsx
index a42bb200d9..835913830c 100644
--- a/packages/page-files/src/UploadModal.tsx
+++ b/packages/page-files/src/UploadModal.tsx
@@ -239,7 +239,7 @@ function UploadModal ({ className, file, onClose = NOOP, onSuccess = NOOP }: Pro
       let upRes: UploadRes;
 
       if (typeof upResult.data === 'string') {
-        const jsonStr = upResult.data.replaceAll('}\n{', '},{');
+        const jsonStr = upResult.data.replace(/}\n{/g, '},{');
         const items = JSON.parse(`[${jsonStr}]`) as UploadRes[];
         const folder = items.length - 1;
 
diff --git a/tsconfig.base.json b/tsconfig.base.json
index 50c97503a0..c8b89bd7aa 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -2,9 +2,6 @@
   "extends": "@polkadot/dev/config/tsconfig.json",
 	"compilerOptions": {
     "composite": false,
-    "lib": ["es2021", "dom"],
-    "jsx": "react",
-    "resolveJsonModule": true,
     /* FIXME we still have some issues with some deps that make the default nodenext impossible */
     "moduleResolution": "node",
 		"paths": {