diff --git a/.swiftpm/xcode/package.xcworkspace/xcuserdata/vico.xcuserdatad/UserInterfaceState.xcuserstate b/.swiftpm/xcode/package.xcworkspace/xcuserdata/vico.xcuserdatad/UserInterfaceState.xcuserstate
index 1bac2d8..b4ff16a 100644
Binary files a/.swiftpm/xcode/package.xcworkspace/xcuserdata/vico.xcuserdatad/UserInterfaceState.xcuserstate and b/.swiftpm/xcode/package.xcworkspace/xcuserdata/vico.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/Sources/COFFEE/Model/Submission.swift b/Sources/COFFEE/Model/Submission.swift
index 26975e6..20a48e4 100644
--- a/Sources/COFFEE/Model/Submission.swift
+++ b/Sources/COFFEE/Model/Submission.swift
@@ -10,7 +10,7 @@ import Foundation
 /// A submission groups multiple item responses
 public struct Submission: Codable {
     /// The date of the submission
-    public let submissionDate: Date
+    public var submissionDate: Date
     /// The responses to the survey questions. For each valid response, there is one response item.
     public var responses: [ItemResponse]
     /// An optional settable identifier to identify the respondent (e.g. a user id)
diff --git a/Sources/COFFEE/Views/SurveyView/SurveyItemViews/NumberItemView.swift b/Sources/COFFEE/Views/SurveyView/SurveyItemViews/NumberItemView.swift
index b47e1b6..87f6b90 100644
--- a/Sources/COFFEE/Views/SurveyView/SurveyItemViews/NumberItemView.swift
+++ b/Sources/COFFEE/Views/SurveyView/SurveyItemViews/NumberItemView.swift
@@ -16,7 +16,7 @@ struct NumberItemView: View {
     @EnvironmentObject var surveyViewModel: SurveyView.ViewModel
     
     var body: some View {
-        TextField("Hey", text: viewModel.numberProxy)
+        TextField("0", text: viewModel.numberProxy)
             .keyboardType(.decimalPad)
             .onChange(of: viewModel.numberProxy.wrappedValue, perform: { value in
                 surveyViewModel.objectWillChange.send()