diff --git a/src/embed_tests/Python.EmbeddingTest.csproj b/src/embed_tests/Python.EmbeddingTest.csproj
index 28076120a..67f4f6dbd 100644
--- a/src/embed_tests/Python.EmbeddingTest.csproj
+++ b/src/embed_tests/Python.EmbeddingTest.csproj
@@ -35,7 +35,7 @@
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.*" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Condition="$(MSBuildRuntimeType) == 'Core'">
-      <Version>1.0.0</Version>
+      <Version>1.0.3</Version>
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
diff --git a/tests/domain_tests/Python.DomainReloadTests.csproj b/tests/domain_tests/Python.DomainReloadTests.csproj
index 9cb61c6f4..03aeb7f0f 100644
--- a/tests/domain_tests/Python.DomainReloadTests.csproj
+++ b/tests/domain_tests/Python.DomainReloadTests.csproj
@@ -20,7 +20,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0" />
+    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" />
   </ItemGroup>
 
 </Project>