diff --git a/nginx/templates/dev/odk.conf.template b/nginx/templates/dev/odk.conf.template
index 67fc94dc21..4b7ba89af2 100644
--- a/nginx/templates/dev/odk.conf.template
+++ b/nginx/templates/dev/odk.conf.template
@@ -25,8 +25,8 @@ server {
     listen 80;
     server_name odk.fmtm.localhost;
 
-    # Max upload size 100MB
-    client_max_body_size 100m;
+    # Max upload size 500MB
+    client_max_body_size 500m;
 
     # The frontend
     location / {
@@ -78,8 +78,8 @@ server {
     ssl_certificate /etc/nginx/central-fullchain.crt;
     ssl_certificate_key /etc/nginx/central.key;
 
-    # Max upload size 100MB
-    client_max_body_size 100m;
+    # Max upload size 500MB
+    client_max_body_size 500m;
 
     # The API
     location ~ ^/v\d {
diff --git a/nginx/templates/odk.conf.template b/nginx/templates/odk.conf.template
index a0a49eded3..629c261875 100644
--- a/nginx/templates/odk.conf.template
+++ b/nginx/templates/odk.conf.template
@@ -36,8 +36,8 @@ server {
     include /etc/nginx/options-ssl-nginx.conf;
     include /etc/nginx/options-security.conf;
 
-    # Max upload size 1GB
-    client_max_body_size 100m;
+    # Max upload size 500MB
+    client_max_body_size 500m;
 
     # Response headers (Access-Control-Allow-Origin set by FastAPI, not required)
     add_header 'Content-Security-Policy' 'upgrade-insecure-requests';