diff --git a/Misc/NEWS b/Misc/NEWS
index cd890af280d..c3fbcb96576 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,10 @@ What's New in Python 3.4.0 Alpha 1?
 Core and Builtins
 -----------------
 
+- Issue #17206: On Windows, increase the stack size from 2 MB to 4.2 MB to fix
+  a stack overflow in the marshal module (fix a crash in test_marshal).
+  Patch written by Jeremy Kloth.
+
 - Issue #3329: Implement the PEP 445: Add new APIs to customize Python memory
   allocators.
 
diff --git a/PCbuild/python.vcxproj b/PCbuild/python.vcxproj
index e1d05e5e50a..bd126245963 100644
--- a/PCbuild/python.vcxproj
+++ b/PCbuild/python.vcxproj
@@ -243,7 +243,7 @@
     <Link>
       <OutputFile>$(OutDir)python_d.exe</OutputFile>
       <SubSystem>Console</SubSystem>
-      <StackReserveSize>2100000</StackReserveSize>
+      <StackReserveSize>4194304</StackReserveSize>
       <BaseAddress>0x1d000000</BaseAddress>
     </Link>
   </ItemDefinitionGroup>