diff --git a/build/System.Memory.props b/build/System.Memory.props
index 67b1309d6d..b328f7fd97 100644
--- a/build/System.Memory.props
+++ b/build/System.Memory.props
@@ -1,5 +1,5 @@
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <PackageReference Include="System.Memory" Version="4.5.2" />
+    <PackageReference Include="System.Memory" Version="4.5.1" />
   </ItemGroup>
 </Project>