diff --git a/crates/caldav/src/error.rs b/crates/caldav/src/error.rs
index 3fc5530..8ec67eb 100644
--- a/crates/caldav/src/error.rs
+++ b/crates/caldav/src/error.rs
@@ -23,7 +23,7 @@ impl IntoResponse for Precondition {
         if let Err(err) = error.serialize_root(&mut writer) {
             return rustical_dav::Error::from(err).into_response();
         }
-        let mut res = Response::builder().status(StatusCode::PRECONDITION_FAILED);
+        let mut res = Response::builder().status(StatusCode::FORBIDDEN);
         res.headers_mut().unwrap().typed_insert(ContentType::xml());
         res.body(Body::from(output)).unwrap()
     }
@@ -72,7 +72,10 @@ impl Error {
             Self::XmlDecodeError(_) => StatusCode::BAD_REQUEST,
             Self::ChronoParseError(_) | Self::NotImplemented => StatusCode::INTERNAL_SERVER_ERROR,
             Self::NotFound => StatusCode::NOT_FOUND,
-            Self::PreconditionFailed(_err) => StatusCode::PRECONDITION_FAILED,
+            // The correct status code for a failed precondition is not PreconditionFailed but
+            // Forbidden (or Conflict):
+            // https://datatracker.ietf.org/doc/html/rfc4791#section-1.3
+            Self::PreconditionFailed(_err) => StatusCode::FORBIDDEN,
         }
     }
 }
@@ -82,10 +85,7 @@ impl IntoResponse for Error {
         if let Self::PreconditionFailed(precondition) = self {
             return precondition.into_response();
         }
-        if matches!(
-            self.status_code(),
-            StatusCode::INTERNAL_SERVER_ERROR | StatusCode::PRECONDITION_FAILED
-        ) {
+        if matches!(self.status_code(), StatusCode::INTERNAL_SERVER_ERROR) {
             error!("{self}");
         }
         (self.status_code(), self.to_string()).into_response()
diff --git a/crates/dav/src/error.rs b/crates/dav/src/error.rs
index 1d0e386..98dcd48 100644
--- a/crates/dav/src/error.rs
+++ b/crates/dav/src/error.rs
@@ -51,19 +51,18 @@ impl Error {
                 _ => StatusCode::BAD_REQUEST,
             },
             Self::PropReadOnly => StatusCode::CONFLICT,
-            Self::PreconditionFailed => StatusCode::PRECONDITION_FAILED,
             Self::InternalError | Self::IOError(_) => StatusCode::INTERNAL_SERVER_ERROR,
-            Self::Forbidden => StatusCode::FORBIDDEN,
+            // The correct status code for a failed precondition is not PreconditionFailed but
+            // Forbidden (or Conflict):
+            // https://datatracker.ietf.org/doc/html/rfc4791#section-1.3
+            Self::PreconditionFailed | Self::Forbidden => StatusCode::FORBIDDEN,
         }
     }
 }
 
 impl axum::response::IntoResponse for Error {
     fn into_response(self) -> axum::response::Response {
-        if matches!(
-            self.status_code(),
-            StatusCode::INTERNAL_SERVER_ERROR | StatusCode::PRECONDITION_FAILED
-        ) {
+        if matches!(self.status_code(), StatusCode::INTERNAL_SERVER_ERROR) {
             error!("{self}");
         }
 
diff --git a/crates/store/src/error.rs b/crates/store/src/error.rs
index 259a9fa..d20dc06 100644
--- a/crates/store/src/error.rs
+++ b/crates/store/src/error.rs
@@ -53,9 +53,7 @@ impl IntoResponse for Error {
     fn into_response(self) -> axum::response::Response {
         if matches!(
             self.status_code(),
-            StatusCode::INTERNAL_SERVER_ERROR
-                | StatusCode::PRECONDITION_FAILED
-                | StatusCode::CONFLICT
+            StatusCode::INTERNAL_SERVER_ERROR | StatusCode::CONFLICT
         ) {
             error!("{self}");
         }
diff --git a/src/integration_tests/caldav/calendar_put.rs b/src/integration_tests/caldav/calendar_put.rs
index b99f274..ba4b818 100644
--- a/src/integration_tests/caldav/calendar_put.rs
+++ b/src/integration_tests/caldav/calendar_put.rs
@@ -66,7 +66,7 @@ END:VCALENDAR";
         .typed_insert(Authorization::basic("user", "pass"));
 
     let response = app.clone().oneshot(request).await.unwrap();
-    assert_eq!(response.status(), StatusCode::PRECONDITION_FAILED);
+    assert_eq!(response.status(), StatusCode::FORBIDDEN);
     let body = response.extract_string().await;
     insta::assert_snapshot!(body, @r#"
     <?xml version="1.0" encoding="utf-8"?>