diff --git a/HotKeys2.E2ETest/Toolbelt.Blazor.HotKeys.E2ETest.csproj b/HotKeys2.E2ETest/Toolbelt.Blazor.HotKeys.E2ETest.csproj
index 8d95feb..8f75767 100644
--- a/HotKeys2.E2ETest/Toolbelt.Blazor.HotKeys.E2ETest.csproj
+++ b/HotKeys2.E2ETest/Toolbelt.Blazor.HotKeys.E2ETest.csproj
@@ -16,10 +16,10 @@
-
-
-
-
+
+
+
+
diff --git a/HotKeys2.Test/Toolbelt.Blazor.HotKeys2.Test.csproj b/HotKeys2.Test/Toolbelt.Blazor.HotKeys2.Test.csproj
index bacf97a..9c0cb14 100644
--- a/HotKeys2.Test/Toolbelt.Blazor.HotKeys2.Test.csproj
+++ b/HotKeys2.Test/Toolbelt.Blazor.HotKeys2.Test.csproj
@@ -15,7 +15,7 @@
-
+
diff --git a/HotKeys2/Toolbelt.Blazor.HotKeys2.csproj b/HotKeys2/Toolbelt.Blazor.HotKeys2.csproj
index 2b18a8e..22b574c 100644
--- a/HotKeys2/Toolbelt.Blazor.HotKeys2.csproj
+++ b/HotKeys2/Toolbelt.Blazor.HotKeys2.csproj
@@ -14,7 +14,7 @@
- 3.0.0
+ 3.1.0-preview.1
Copyright © 2022-2023 J.Sakamoto, Mozilla Public License 2.0
J.Sakamoto
git
diff --git a/SampleSites/Components/SampleSite.Components.csproj b/SampleSites/Components/SampleSite.Components.csproj
index 2ca21d4..8fc060f 100644
--- a/SampleSites/Components/SampleSite.Components.csproj
+++ b/SampleSites/Components/SampleSite.Components.csproj
@@ -16,8 +16,8 @@
-
-
+
+