diff --git a/components/DocumentTranslator.tsx b/components/DocumentTranslator.tsx
index a6c6879..6ac2f34 100644
--- a/components/DocumentTranslator.tsx
+++ b/components/DocumentTranslator.tsx
@@ -150,7 +150,7 @@ const DocumentTranslator: FC = () => {
                     type="file"
                     display="none"
                     accept=".pdf,.docx,.xlsx,.xls,.csv"
-                    onChange={e => { const f = e.target.files?.[0]; if (f) handleFile(f); }}
+                    onChange={(e: React.ChangeEvent<HTMLInputElement>) => { const f = e.target.files?.[0]; if (f) handleFile(f); }}
                 />
                 {file ? (
                     <VStack spacing={1}>
@@ -177,7 +177,7 @@ const DocumentTranslator: FC = () => {
                     <Box flex={1}>
                         <Select
                             value={target}
-                            onChange={e => setTarget(e.target.value)}
+                            onChange={(e: React.ChangeEvent<HTMLSelectElement>) => setTarget(e.target.value)}
                             size="md"
                             aria-label="Target language"
                         >