diff --git a/languages/csharp/CevioCasts/CevioCasts.csproj b/languages/csharp/CevioCasts/CevioCasts.csproj
index c415ea4..52b267a 100644
--- a/languages/csharp/CevioCasts/CevioCasts.csproj
+++ b/languages/csharp/CevioCasts/CevioCasts.csproj
@@ -7,8 +7,8 @@
-
+ Include="Portable.System.DateTimeOnly" Version="8.0.1" />
+
diff --git a/test2/test2.csproj b/test2/test2.csproj
index 90af754..cbddf9a 100644
--- a/test2/test2.csproj
+++ b/test2/test2.csproj
@@ -9,13 +9,13 @@
-
-
-
+
+
+
runtime; build; native; contentfiles; analyzers; buildtransitive
all
-
+
runtime; build; native; contentfiles; analyzers; buildtransitive
all
diff --git a/tests/UpdateCheck/UpdateCheck.csproj b/tests/UpdateCheck/UpdateCheck.csproj
index 6884341..042475b 100644
--- a/tests/UpdateCheck/UpdateCheck.csproj
+++ b/tests/UpdateCheck/UpdateCheck.csproj
@@ -11,19 +11,19 @@
-
+
runtime; build; native; contentfiles; analyzers; buildtransitive
all
-
-
-
+
+
+
runtime; build; native; contentfiles; analyzers; buildtransitive
all
-
+
runtime; build; native; contentfiles; analyzers; buildtransitive
all