diff --git a/.env.sample b/.env.sample
index 8ebec5632..1724989de 100644
--- a/.env.sample
+++ b/.env.sample
@@ -64,7 +64,7 @@ FILE_STORAGE=local
 FILE_STORAGE_LOCAL_ROOT_DIR=/var/lib/outline/data
 
 # Maximum allowed size for the uploaded attachment.
-FILE_STORAGE_UPLOAD_MAX_SIZE=26214400
+FILE_STORAGE_UPLOAD_MAX_SIZE=262144000
 
 # –––––––––––––– AUTHENTICATION ––––––––––––––