diff --git a/tests/FSharp.Compiler.ComponentTests/CompilerOptions/fsi/FsiCliTests.fs b/tests/FSharp.Compiler.ComponentTests/CompilerOptions/fsi/FsiCliTests.fs
index dbb08a42edb..2f96d57d663 100644
--- a/tests/FSharp.Compiler.ComponentTests/CompilerOptions/fsi/FsiCliTests.fs
+++ b/tests/FSharp.Compiler.ComponentTests/CompilerOptions/fsi/FsiCliTests.fs
@@ -85,10 +85,28 @@ module FsiCliTests =
         finally
             try System.IO.File.Delete(scriptPath) with _ -> ()
 
+    // The FSI #r "nuget:" restore below must request a package version that is guaranteed to be in
+    // the offline restore cache on the internal signed build (which cannot restore online). Central
+    // package management + transitive pinning means only the centrally-pinned version (eng/Packages.props)
+    // is ever restored into that cache, and it changes whenever the pin is bumped. Rather than hardcode
+    // a version that would silently drift, read the exact pinned version baked into this test assembly
+    // at build time via AssemblyMetadata (see FSharp.Compiler.ComponentTests.fsproj). The package id
+    // (MessagePack) is kept in sync with that project; any centrally-pinned standalone package would do.
+    [<Literal>]
+    let private restoreTestPackageId = "MessagePack"
+
+    let private restoreTestPackageVersion =
+        System.Reflection.Assembly.GetExecutingAssembly().GetCustomAttributes(typeof<System.Reflection.AssemblyMetadataAttribute>, false)
+        |> Array.tryPick (fun a ->
+            let m = a :?> System.Reflection.AssemblyMetadataAttribute
+            if m.Key = "FsiRestoreTestPackageVersion" && not (System.String.IsNullOrWhiteSpace m.Value) then Some m.Value else None)
+        |> Option.defaultWith (fun () ->
+            failwith "AssemblyMetadata 'FsiRestoreTestPackageVersion' is missing. It should be emitted by FSharp.Compiler.ComponentTests.fsproj from the central MessagePack PackageVersion.")
+
     [<Fact>]
     let ``FSI quiet mode suppresses NuGet restore output from stdout`` () =
-        let script = """
-#r "nuget: Newtonsoft.Json, 13.0.3"
+        let script = $"""
+#r "nuget: {restoreTestPackageId}, {restoreTestPackageVersion}"
 printfn "RESULT_MARKER_18086"
 """
         let result = runFsiScript ["--quiet"] script
@@ -100,8 +118,8 @@ printfn "RESULT_MARKER_18086"
 
     [<Fact>]
     let ``FSI default (non-quiet) mode still evaluates script and prints user output`` () =
-        let script = """
-#r "nuget: Newtonsoft.Json, 13.0.3"
+        let script = $"""
+#r "nuget: {restoreTestPackageId}, {restoreTestPackageVersion}"
 printfn "RESULT_MARKER_18086_DEFAULT"
 """
         let result = runFsiScript [] script
diff --git a/tests/FSharp.Compiler.ComponentTests/FSharp.Compiler.ComponentTests.fsproj b/tests/FSharp.Compiler.ComponentTests/FSharp.Compiler.ComponentTests.fsproj
index 9552df0463c..476b903efcf 100644
--- a/tests/FSharp.Compiler.ComponentTests/FSharp.Compiler.ComponentTests.fsproj
+++ b/tests/FSharp.Compiler.ComponentTests/FSharp.Compiler.ComponentTests.fsproj
@@ -562,5 +562,20 @@
     <PackageReference Include="FSharp.Core" />
   </ItemGroup>
 
+  <!-- FsiCliTests spawns FSI and does `#r "nuget: <pkg>, <version>"` to verify that quiet mode
+       suppresses NuGet restore chatter. On the internal signed build NuGet restore is offline, so the
+       requested version must be one that is already in the restore cache. Under central package
+       management with transitive pinning, that is exactly the centrally-pinned version
+       (eng/Packages.props). Bake that version into the test assembly so the test can request it at
+       runtime with no manual sync when the central pin is bumped. MessagePack is used (rather than a
+       general-purpose JSON package) because it is an actively-maintained, non-system standalone library
+       that is centrally pinned and restored transitively by the product (StreamJsonRpc); keep the
+       package id here in sync with the id in FsiCliTests.fs. -->
+  <PropertyGroup>
+    <FsiRestoreTestPackageVersion>@(PackageVersion->WithMetadataValue('Identity','MessagePack')->'%(Version)')</FsiRestoreTestPackageVersion>
+  </PropertyGroup>
+  <ItemGroup>
+    <AssemblyMetadata Include="FsiRestoreTestPackageVersion" Value="$(FsiRestoreTestPackageVersion)" />
+  </ItemGroup>
 
 </Project>