diff --git a/eng/Versions.props b/eng/Versions.props
index 5993821c9ea..5ce287e802b 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -71,21 +71,29 @@
     <AssemblyVersion>$(VersionPrefix).0</AssemblyVersion>
     <!-- PR builds should explicitly specify a version number -->
   </PropertyGroup>
+  <!-- Dependencies from maintenance-packages, source-build specific -->
+  <PropertyGroup Condition="'$(DotNetBuildSourceOnly)' == 'true'">
+    <SystemBuffersVersion>4.6.1</SystemBuffersVersion>
+    <SystemMemoryVersion>4.6.2</SystemMemoryVersion>
+    <SystemRuntimeCompilerServicesUnsafeVersion>6.1.1</SystemRuntimeCompilerServicesUnsafeVersion>
+  </PropertyGroup>
+  <!-- Dependencies from maintenance-packages, everything else -->
+  <PropertyGroup Condition="'$(DotNetBuildSourceOnly)' != 'true'">
+    <SystemBuffersVersion>4.6.0</SystemBuffersVersion>
+    <SystemMemoryVersion>4.5.5</SystemMemoryVersion>
+    <SystemRuntimeCompilerServicesUnsafeVersion>6.1.0</SystemRuntimeCompilerServicesUnsafeVersion>
+  </PropertyGroup>
   <PropertyGroup>
     <!-- System.* packages -->
     <!-- If a System.* package is stuck on version 4.3.x, targets .NET Standard 1.x and hasn't been
     updated in years, you most likely DON'T need it, please exercise caution when adding it to the list. -->
     <SystemPackageVersionVersion>8.0.0</SystemPackageVersionVersion>
-    <SystemBuffersVersion>4.6.0</SystemBuffersVersion>
     <SystemCollectionsImmutableVersion>$(SystemPackageVersionVersion)</SystemCollectionsImmutableVersion>
     <SystemComponentModelCompositionVersion>$(SystemPackageVersionVersion)</SystemComponentModelCompositionVersion>
     <SystemCompositionVersion>$(SystemPackageVersionVersion)</SystemCompositionVersion>
     <SystemDiagnosticsDiagnosticSourceVersion>$(SystemPackageVersionVersion)</SystemDiagnosticsDiagnosticSourceVersion>
-    <SystemMemoryVersion Condition="'$(DotNetBuildSourceOnly)' != 'true'">4.5.5</SystemMemoryVersion>
-    <SystemMemoryVersion Condition="'$(DotNetBuildSourceOnly)' == 'true'">4.6.0</SystemMemoryVersion>
     <SystemReflectionEmitVersion>4.7.0</SystemReflectionEmitVersion>
     <SystemReflectionMetadataVersion>$(SystemPackageVersionVersion)</SystemReflectionMetadataVersion>
-    <SystemRuntimeCompilerServicesUnsafeVersion>6.1.0</SystemRuntimeCompilerServicesUnsafeVersion>
     <SystemThreadingTasksDataflow>$(SystemPackageVersionVersion)</SystemThreadingTasksDataflow>
     <MicrosoftDiaSymReaderPortablePdbVersion>1.6.0</MicrosoftDiaSymReaderPortablePdbVersion>
     <!-- Versions for package groups -->
diff --git a/src/FSharp.Build/Microsoft.FSharp.NetSdk.props b/src/FSharp.Build/Microsoft.FSharp.NetSdk.props
index 38d83cd8ab4..e45f864ce22 100644
--- a/src/FSharp.Build/Microsoft.FSharp.NetSdk.props
+++ b/src/FSharp.Build/Microsoft.FSharp.NetSdk.props
@@ -94,7 +94,7 @@ WARNING:  DO NOT MODIFY this file unless you are knowledgeable about MSBuild and
   <Import Project="Microsoft.FSharp.Core.NetSdk.props" />                       <!-- Sets initial value of FSharp.Core -->
 
   <PropertyGroup>
-    <ValueTupleImplicitPackageVersion>4.4.0</ValueTupleImplicitPackageVersion>
+    <ValueTupleImplicitPackageVersion>4.6.1</ValueTupleImplicitPackageVersion>
   </PropertyGroup>
 
   <ItemGroup>