diff --git a/setup.py b/setup.py
index 4ec2a2113..a7117b53f 100644
--- a/setup.py
+++ b/setup.py
@@ -264,7 +264,7 @@ def build_extension(self, ext):
         subprocess.check_call(" ".join(cmd + ["/t:Clean"]), shell=use_shell)
         subprocess.check_call(" ".join(cmd + ["/t:Build"]), shell=use_shell)
         if DEVTOOLS == "MsDev15" or DEVTOOLS == "dotnet":
-            subprocess.check_call(" ".join(cmd + ['"/t:Console_15:publish;Python_EmbeddingTest_15:publish"', "/p:TargetFramework=netcoreapp2.0"]), shell=use_shell)
+            subprocess.check_call(" ".join(cmd + ['"/t:Console_15:publish;Python_EmbeddingTest_15:publish"', "/p:TargetFramework=netcoreapp2.1"]), shell=use_shell)
         if DEVTOOLS == "Mono" or DEVTOOLS == "dotnet":
             self._build_monoclr()
 
diff --git a/src/console/Console.15.csproj b/src/console/Console.15.csproj
index ec5008036..13098e468 100644
--- a/src/console/Console.15.csproj
+++ b/src/console/Console.15.csproj
@@ -1,7 +1,7 @@
 <Project>
   <Import Project="Sdk.props" Sdk="Microsoft.NET.Sdk" />
   <PropertyGroup>
-    <TargetFrameworks>net40;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>net40;netcoreapp2.1</TargetFrameworks>
     <Platforms>x64;x86</Platforms>
     <Configurations>DebugMono;DebugMonoPY3;ReleaseMono;ReleaseMonoPY3;DebugWin;DebugWinPY3;ReleaseWin;ReleaseWinPY3</Configurations>
     <OutputType>Exe</OutputType>
diff --git a/src/embed_tests/Python.EmbeddingTest.15.csproj b/src/embed_tests/Python.EmbeddingTest.15.csproj
index 92d55a7e0..c5da1fe7e 100644
--- a/src/embed_tests/Python.EmbeddingTest.15.csproj
+++ b/src/embed_tests/Python.EmbeddingTest.15.csproj
@@ -2,7 +2,7 @@
   <Import Project="Sdk.props" Sdk="Microsoft.NET.Sdk" />
 
   <PropertyGroup>
-    <TargetFrameworks>net40;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>net40;netcoreapp2.1</TargetFrameworks>
     <Platforms>x64;x86</Platforms>
     <Configurations>DebugMono;DebugMonoPY3;ReleaseMono;ReleaseMonoPY3;DebugWin;DebugWinPY3;ReleaseWin;ReleaseWinPY3</Configurations>
     <OutputType Condition="'$(TargetFramework)' != 'net40' OR '$(PYTHONNET_VS_ENV)' == 'true'">Exe</OutputType>
diff --git a/src/runtime/interop35m.cs b/src/runtime/interop35m.cs
new file mode 100644
index 000000000..2cdd07304
--- /dev/null
+++ b/src/runtime/interop35m.cs
@@ -0,0 +1,150 @@
+
+// Auto-generated by geninterop.py.
+// DO NOT MODIFIY BY HAND.
+
+
+#if PYTHON35 && PYTHON_WITH_PYMALLOC
+using System;
+using System.Collections;
+using System.Collections.Specialized;
+using System.Runtime.InteropServices;
+using System.Reflection;
+using System.Text;
+
+namespace Python.Runtime
+{
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+    internal class TypeOffset
+    {
+        static TypeOffset()
+        {
+            Type type = typeof(TypeOffset);
+            FieldInfo[] fi = type.GetFields();
+            int size = IntPtr.Size;
+            for (int i = 0; i < fi.Length; i++)
+            {
+                fi[i].SetValue(null, i * size);
+            }
+        }
+
+        public static int magic()
+        {
+            return ob_size;
+        }
+
+        // Auto-generated from PyHeapTypeObject in Python.h
+        public static int ob_refcnt = 0;
+        public static int ob_type = 0;
+        public static int ob_size = 0;
+        public static int tp_name = 0;
+        public static int tp_basicsize = 0;
+        public static int tp_itemsize = 0;
+        public static int tp_dealloc = 0;
+        public static int tp_print = 0;
+        public static int tp_getattr = 0;
+        public static int tp_setattr = 0;
+        public static int tp_as_async = 0;
+        public static int tp_repr = 0;
+        public static int tp_as_number = 0;
+        public static int tp_as_sequence = 0;
+        public static int tp_as_mapping = 0;
+        public static int tp_hash = 0;
+        public static int tp_call = 0;
+        public static int tp_str = 0;
+        public static int tp_getattro = 0;
+        public static int tp_setattro = 0;
+        public static int tp_as_buffer = 0;
+        public static int tp_flags = 0;
+        public static int tp_doc = 0;
+        public static int tp_traverse = 0;
+        public static int tp_clear = 0;
+        public static int tp_richcompare = 0;
+        public static int tp_weaklistoffset = 0;
+        public static int tp_iter = 0;
+        public static int tp_iternext = 0;
+        public static int tp_methods = 0;
+        public static int tp_members = 0;
+        public static int tp_getset = 0;
+        public static int tp_base = 0;
+        public static int tp_dict = 0;
+        public static int tp_descr_get = 0;
+        public static int tp_descr_set = 0;
+        public static int tp_dictoffset = 0;
+        public static int tp_init = 0;
+        public static int tp_alloc = 0;
+        public static int tp_new = 0;
+        public static int tp_free = 0;
+        public static int tp_is_gc = 0;
+        public static int tp_bases = 0;
+        public static int tp_mro = 0;
+        public static int tp_cache = 0;
+        public static int tp_subclasses = 0;
+        public static int tp_weaklist = 0;
+        public static int tp_del = 0;
+        public static int tp_version_tag = 0;
+        public static int tp_finalize = 0;
+        public static int am_await = 0;
+        public static int am_aiter = 0;
+        public static int am_anext = 0;
+        public static int nb_add = 0;
+        public static int nb_subtract = 0;
+        public static int nb_multiply = 0;
+        public static int nb_remainder = 0;
+        public static int nb_divmod = 0;
+        public static int nb_power = 0;
+        public static int nb_negative = 0;
+        public static int nb_positive = 0;
+        public static int nb_absolute = 0;
+        public static int nb_bool = 0;
+        public static int nb_invert = 0;
+        public static int nb_lshift = 0;
+        public static int nb_rshift = 0;
+        public static int nb_and = 0;
+        public static int nb_xor = 0;
+        public static int nb_or = 0;
+        public static int nb_int = 0;
+        public static int nb_reserved = 0;
+        public static int nb_float = 0;
+        public static int nb_inplace_add = 0;
+        public static int nb_inplace_subtract = 0;
+        public static int nb_inplace_multiply = 0;
+        public static int nb_inplace_remainder = 0;
+        public static int nb_inplace_power = 0;
+        public static int nb_inplace_lshift = 0;
+        public static int nb_inplace_rshift = 0;
+        public static int nb_inplace_and = 0;
+        public static int nb_inplace_xor = 0;
+        public static int nb_inplace_or = 0;
+        public static int nb_floor_divide = 0;
+        public static int nb_true_divide = 0;
+        public static int nb_inplace_floor_divide = 0;
+        public static int nb_inplace_true_divide = 0;
+        public static int nb_index = 0;
+        public static int nb_matrix_multiply = 0;
+        public static int nb_inplace_matrix_multiply = 0;
+        public static int mp_length = 0;
+        public static int mp_subscript = 0;
+        public static int mp_ass_subscript = 0;
+        public static int sq_length = 0;
+        public static int sq_concat = 0;
+        public static int sq_repeat = 0;
+        public static int sq_item = 0;
+        public static int was_sq_slice = 0;
+        public static int sq_ass_item = 0;
+        public static int was_sq_ass_slice = 0;
+        public static int sq_contains = 0;
+        public static int sq_inplace_concat = 0;
+        public static int sq_inplace_repeat = 0;
+        public static int bf_getbuffer = 0;
+        public static int bf_releasebuffer = 0;
+        public static int name = 0;
+        public static int ht_slots = 0;
+        public static int qualname = 0;
+        public static int ht_cached_keys = 0;
+
+        /* here are optional user slots, followed by the members. */
+        public static int members = 0;
+    }
+}
+
+#endif