diff --git a/changelog/pending/20221206--sdk-dotnet--drop-support-for-net-core-3-1.yaml b/changelog/pending/20221206--sdk-dotnet--drop-support-for-net-core-3-1.yaml
new file mode 100644
index 000000000000..dfb43567993f
--- /dev/null
+++ b/changelog/pending/20221206--sdk-dotnet--drop-support-for-net-core-3-1.yaml
@@ -0,0 +1,4 @@
+changes:
+- type: feat
+  scope: sdk/dotnet
+  description: Drop support for .NET Core 3.1.
diff --git a/pkg/codegen/dotnet/gen.go b/pkg/codegen/dotnet/gen.go
index 1ce7ec099519..6948d68fcc17 100644
--- a/pkg/codegen/dotnet/gen.go
+++ b/pkg/codegen/dotnet/gen.go
@@ -2076,7 +2076,7 @@ func genProjectFile(pkg *schema.Package,
 		// only add a package reference to Pulumi if we're not referencing a local Pulumi project
 		// which we usually do when testing schemas locally
 		if !referencedLocalPulumiProject {
-			packageReferences["Pulumi"] = "[3.23.0,4)"
+			packageReferences["Pulumi"] = "[3.49.0,4)"
 		}
 	}
 
diff --git a/pkg/codegen/dotnet/templates.go b/pkg/codegen/dotnet/templates.go
index 10b9e11303c3..7bbead8fff42 100644
--- a/pkg/codegen/dotnet/templates.go
+++ b/pkg/codegen/dotnet/templates.go
@@ -132,7 +132,7 @@ const csharpProjectFileTemplateText = `<Project Sdk="Microsoft.NET.Sdk">
     <RepositoryUrl>{{.Package.Repository}}</RepositoryUrl>
     <PackageIcon>logo.png</PackageIcon>
 
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
     <UseSharedCompilation>false</UseSharedCompilation>
   </PropertyGroup>
diff --git a/sdk/go/auto/test/errors/compilation_error/dotnet/dotnet.csproj b/sdk/go/auto/test/errors/compilation_error/dotnet/dotnet.csproj
index 7f5af17205a1..f2ce42fa8823 100644
--- a/sdk/go/auto/test/errors/compilation_error/dotnet/dotnet.csproj
+++ b/sdk/go/auto/test/errors/compilation_error/dotnet/dotnet.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
diff --git a/sdk/go/auto/test/errors/runtime_error/dotnet/adsfsdf.csproj b/sdk/go/auto/test/errors/runtime_error/dotnet/adsfsdf.csproj
index 7f5af17205a1..f2ce42fa8823 100644
--- a/sdk/go/auto/test/errors/runtime_error/dotnet/adsfsdf.csproj
+++ b/sdk/go/auto/test/errors/runtime_error/dotnet/adsfsdf.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
diff --git a/sdk/python/lib/test/automation/errors/compilation_error/dotnet/dotnet.csproj b/sdk/python/lib/test/automation/errors/compilation_error/dotnet/dotnet.csproj
index 7f5af17205a1..f2ce42fa8823 100644
--- a/sdk/python/lib/test/automation/errors/compilation_error/dotnet/dotnet.csproj
+++ b/sdk/python/lib/test/automation/errors/compilation_error/dotnet/dotnet.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
diff --git a/sdk/python/lib/test/automation/errors/runtime_error/dotnet/adsfsdf.csproj b/sdk/python/lib/test/automation/errors/runtime_error/dotnet/adsfsdf.csproj
index 7f5af17205a1..f2ce42fa8823 100644
--- a/sdk/python/lib/test/automation/errors/runtime_error/dotnet/adsfsdf.csproj
+++ b/sdk/python/lib/test/automation/errors/runtime_error/dotnet/adsfsdf.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>