diff --git a/X10D.Tests/X10D.Tests.csproj b/X10D.Tests/X10D.Tests.csproj
index 0ebaf95..a1349f5 100644
--- a/X10D.Tests/X10D.Tests.csproj
+++ b/X10D.Tests/X10D.Tests.csproj
@@ -15,7 +15,7 @@
           <PrivateAssets>all</PrivateAssets>
           <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
-        <PackageReference Include="Unity3D.SDK" Version="2019.4.3.1" />
+        <PackageReference Include="Unity3D.SDK" Version="2020.3.12.1" />
     </ItemGroup>
 
     <ItemGroup>
diff --git a/X10D.Unity/X10D.Unity.csproj b/X10D.Unity/X10D.Unity.csproj
index 1f9d5f6..7caa29d 100644
--- a/X10D.Unity/X10D.Unity.csproj
+++ b/X10D.Unity/X10D.Unity.csproj
@@ -36,7 +36,7 @@
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
-        <PackageReference Include="Unity3D.SDK" Version="2019.4.3.1">
+        <PackageReference Include="Unity3D.SDK" Version="2020.3.12.1">
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
     </ItemGroup>