diff --git a/eng/Versions.props b/eng/Versions.props
index ad5e1bfac6be..4f34d73d1b74 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -169,7 +169,7 @@
     <MicrosoftIdentityWebDownstreamApiVersion>3.15.1</MicrosoftIdentityWebDownstreamApiVersion>
     <MicrosoftWindowsCsWin32Version>0.3.296</MicrosoftWindowsCsWin32Version>
     <MessagePackAnalyzerVersion>$(MessagePackVersion)</MessagePackAnalyzerVersion>
-    <ModelContextProtocolVersion>1.2.0</ModelContextProtocolVersion>
+    <ModelContextProtocolVersion>2.1.0</ModelContextProtocolVersion>
     <ModelContextProtocolAspNetCoreVersion>$(ModelContextProtocolVersion)</ModelContextProtocolAspNetCoreVersion>
     <MoqVersion>4.20.72</MoqVersion>
     <MonoCecilVersion>0.11.2</MonoCecilVersion>