diff --git a/paket.dependencies b/paket.dependencies
index 203b26a8..c373cd35 100644
--- a/paket.dependencies
+++ b/paket.dependencies
@@ -17,6 +17,7 @@ nuget BenchmarkDotNet lowest_matching, strategy:min, framework:net461,netcoreapp
 // Data
 nuget MathNet.Numerics 4.0.0
 
+nuget Microsoft.NETFramework.ReferenceAssemblies copy_local:true, framework:net461,net45,net40
 nuget NETStandard.Library 2.0.3 lowest_matching, strategy:min, framework:netstandard1.3,netstandard1.6,netstandard2.0,netcoreapp3.1
 nuget Microsoft.NETCore.Platforms 3.1.0 lowest_matching, strategy:min, framework:netstandard1.3,netstandard1.6,netstandard2.0,netcoreapp3.1
 nuget Microsoft.NETCore.App 2.2.8 lowest_matching, strategy:min, framework:netstandard1.3,netstandard1.6,netstandard2.0,netcoreapp3.1
diff --git a/paket.lock b/paket.lock
index 4fdb4e11..69ad4da5 100644
--- a/paket.lock
+++ b/paket.lock
@@ -149,6 +149,13 @@ NUGET
     Microsoft.NETCore.Runtime.CoreCLR (2.0.8) - restriction: || (== netcoreapp3.1) (== netstandard1.3) (== netstandard1.6) (== netstandard2.0)
       Microsoft.NETCore.Jit (>= 2.0.8)
     Microsoft.NETCore.Targets (2.0) - restriction: || (== netcoreapp3.1) (== netstandard1.3) (== netstandard1.6) (== netstandard2.0)
+    Microsoft.NETFramework.ReferenceAssemblies (1.0) - copy_local: true, restriction: || (== net40) (== net45) (== net461)
+      Microsoft.NETFramework.ReferenceAssemblies.net40 (>= 1.0) - restriction: && (>= net40) (< net45)
+      Microsoft.NETFramework.ReferenceAssemblies.net45 (>= 1.0) - restriction: && (>= net45) (< net451)
+      Microsoft.NETFramework.ReferenceAssemblies.net461 (>= 1.0) - restriction: && (>= net461) (< net462)
+    Microsoft.NETFramework.ReferenceAssemblies.net40 (1.0) - copy_local: true, restriction: || (== net40) (&& (== net461) (< net45))
+    Microsoft.NETFramework.ReferenceAssemblies.net45 (1.0) - copy_local: true, restriction: || (&& (== net40) (>= net45)) (== net45) (&& (== net461) (< net451))
+    Microsoft.NETFramework.ReferenceAssemblies.net461 (1.0) - copy_local: true, restriction: || (&& (== net40) (>= net461)) (&& (== net45) (>= net461)) (== net461)
     Microsoft.TestPlatform.ObjectModel (16.4) - restriction: >= netcoreapp2.1
       NuGet.Frameworks (>= 5.0) - restriction: || (>= net451) (>= netstandard2.0)
     Microsoft.TestPlatform.TestHost (16.4) - restriction: >= netcoreapp2.1
diff --git a/src/Benchmark/paket.references b/src/Benchmark/paket.references
index 62904d8a..46d28cb2 100644
--- a/src/Benchmark/paket.references
+++ b/src/Benchmark/paket.references
@@ -1,5 +1,6 @@
 BenchmarkDotNet
 
+Microsoft.NETFramework.ReferenceAssemblies
 System.Reflection framework:netcoreapp3.1
 System.Reflection.Extensions framework:netcoreapp3.1
 System.Reflection.TypeExtensions framework:netcoreapp3.1
diff --git a/src/FSharp.Tests/paket.references b/src/FSharp.Tests/paket.references
index 14b91891..379a3d20 100644
--- a/src/FSharp.Tests/paket.references
+++ b/src/FSharp.Tests/paket.references
@@ -1,4 +1,5 @@
 Microsoft.NET.Test.Sdk
+Microsoft.NETFramework.ReferenceAssemblies
 FSharp.Core
 NUnit3TestAdapter
 NUnit
diff --git a/src/FSharp/paket.references b/src/FSharp/paket.references
index 09c8af01..de95761a 100644
--- a/src/FSharp/paket.references
+++ b/src/FSharp/paket.references
@@ -1,4 +1,5 @@
 FSharp.Core
+Microsoft.NETFramework.ReferenceAssemblies
 System.Runtime framework:netstandard1.6
 System.Runtime.Numerics framework:netstandard1.6
 System.Runtime.Serialization.Xml framework:netstandard1.6
diff --git a/src/Numerics.Tests/paket.references b/src/Numerics.Tests/paket.references
index 634b72be..da4f100f 100644
--- a/src/Numerics.Tests/paket.references
+++ b/src/Numerics.Tests/paket.references
@@ -1,4 +1,5 @@
 Microsoft.NET.Test.Sdk
+Microsoft.NETFramework.ReferenceAssemblies
 NUnit3TestAdapter
 NUnit
 NUnitLite content:none
diff --git a/src/Numerics/paket.references b/src/Numerics/paket.references
index 739f7d9a..4be78252 100644
--- a/src/Numerics/paket.references
+++ b/src/Numerics/paket.references
@@ -4,3 +4,4 @@ System.Runtime.Serialization.Xml framework:netstandard1.3
 System.Runtime.Serialization.Primitives framework:netstandard1.3
 System.Runtime.Serialization.Formatters framework:netstandard1.3
 System.Security.Cryptography.Algorithms framework:netstandard1.3
+Microsoft.NETFramework.ReferenceAssemblies
diff --git a/src/TestData/paket.references b/src/TestData/paket.references
index e69de29b..a954f0e2 100644
--- a/src/TestData/paket.references
+++ b/src/TestData/paket.references
@@ -0,0 +1 @@
+Microsoft.NETFramework.ReferenceAssemblies