diff --git a/changelog_entry.yaml b/changelog_entry.yaml
index e69de29..09d8bf7 100644
--- a/changelog_entry.yaml
+++ b/changelog_entry.yaml
@@ -0,0 +1,4 @@
+- bump: patch
+  changes:
+    changed:
+    - Increase limit to csv size.
diff --git a/microcalibration-dashboard/src/components/FileUpload.tsx b/microcalibration-dashboard/src/components/FileUpload.tsx
index 9e9f5c9..3d5cab8 100644
--- a/microcalibration-dashboard/src/components/FileUpload.tsx
+++ b/microcalibration-dashboard/src/components/FileUpload.tsx
@@ -374,9 +374,9 @@ export default function FileUpload({
       return;
     }
 
-    if (file.size > 50 * 1024 * 1024) {
-      // 50 MB limit
-      setError('File is too large (over 50 MB). Please use a smaller CSV file.');
+    if (file.size > 500 * 1024 * 1024) {
+      // 500 MB limit
+      setError('File is too large (over 500 MB). Please use a smaller CSV file.');
       return;
     }
 
@@ -402,8 +402,8 @@ export default function FileUpload({
       return;
     }
 
-    if (file.size > 50 * 1024 * 1024) {
-      setError('File is too large (over 50 MB). Please select a smaller CSV file.');
+    if (file.size > 500 * 1024 * 1024) {
+      setError('File is too large (over 500 MB). Please select a smaller CSV file.');
       return;
     }