diff --git a/src/app.rs b/src/app.rs
index 53fa934..24ac237 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -1,7 +1,7 @@
 use crate::config::NextcloudLoginConfig;
 use axum::Router;
 use axum::body::{Body, HttpBody};
-use axum::extract::Request;
+use axum::extract::{DefaultBodyLimit, Request};
 use axum::middleware::Next;
 use axum::response::{Redirect, Response};
 use axum::routing::{any, options};
@@ -39,6 +39,7 @@ pub fn make_app<AS: AddressbookStore, CS: CalendarStore, S: SubscriptionStore>(
     nextcloud_login_config: NextcloudLoginConfig,
     dav_push_enabled: bool,
     session_cookie_samesite_strict: bool,
+    payload_limit_mb: usize,
 ) -> Router<()> {
     let birthday_store = Arc::new(ContactBirthdayStore::new(addr_store.clone()));
     let combined_cal_store =
@@ -202,4 +203,5 @@ pub fn make_app<AS: AddressbookStore, CS: CalendarStore, S: SubscriptionStore>(
                 response
             },
         ))
+        .layer(DefaultBodyLimit::max(payload_limit_mb * 1000 * 1000))
 }
diff --git a/src/config.rs b/src/config.rs
index 4eb8829..0fe6a2b 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -8,6 +8,7 @@ pub struct HttpConfig {
     pub host: String,
     pub port: u16,
     pub session_cookie_samesite_strict: bool,
+    pub payload_limit_mb: usize,
 }
 
 impl Default for HttpConfig {
@@ -16,6 +17,7 @@ impl Default for HttpConfig {
             host: "0.0.0.0".to_owned(),
             port: 4000,
             session_cookie_samesite_strict: false,
+            payload_limit_mb: 4,
         }
     }
 }
diff --git a/src/main.rs b/src/main.rs
index b4ceadf..b5b3a4d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -117,6 +117,7 @@ async fn main() -> Result<()> {
                 config.nextcloud_login.clone(),
                 config.dav_push.enabled,
                 config.http.session_cookie_samesite_strict,
+                config.http.payload_limit_mb,
             );
             let app = ServiceExt::<Request>::into_make_service(
                 NormalizePathLayer::trim_trailing_slash().layer(app),