diff --git a/src/tests/baseservices/exceptions/OutOfMemoryException/OutOfMemoryException.csproj b/src/tests/baseservices/exceptions/OutOfMemoryException/OutOfMemoryException.csproj
index 99a8a7fdfd0c24..403e595febf382 100644
--- a/src/tests/baseservices/exceptions/OutOfMemoryException/OutOfMemoryException.csproj
+++ b/src/tests/baseservices/exceptions/OutOfMemoryException/OutOfMemoryException.csproj
@@ -8,6 +8,9 @@
     <CLRTestTargetUnsupported Condition="'$(TargetsOSX)' == 'true' and '$(TargetArchitecture)' == 'x64'">true</CLRTestTargetUnsupported>
     <RequiresProcessIsolation>true</RequiresProcessIsolation>
     <ReferenceXUnitWrapperGenerator>false</ReferenceXUnitWrapperGenerator>
+    <!-- GCStress runs collections very frequently and allocates its own objects, which changes
+         when the program runs out of memory. As a result the small allocations test becomes unreliable. -->
+    <GCStressIncompatible>true</GCStressIncompatible>
     <!-- Mono doesn't enforce DOTNET_GCHeapHardLimit as a GC heap limit -->
     <DisableProjectBuild Condition="'$(RuntimeFlavor)' == 'mono'">true</DisableProjectBuild>
   </PropertyGroup>