diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 244fed20fb5..91137a797c6 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -37,6 +37,11 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>d099f075e45d2aa6007a22b71b45a08758559f80</Sha>
     </Dependency>
+    <!-- Necessary for source-build. This allows the live version of the package to be used by source-build. -->
+    <Dependency Name="System.Security.Permissions" Version="7.0.0">
+      <Uri>https://github.com/dotnet/runtime</Uri>
+      <Sha>d099f075e45d2aa6007a22b71b45a08758559f80</Sha>
+    </Dependency>
     <Dependency Name="System.Text.Json" Version="7.0.3">
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>5b20af47d99620150c53eaf5db8636fdf730b126</Sha>