diff --git a/eng/Packages.Data.props b/eng/Packages.Data.props
index d4e3096ee58d..577f23b09993 100644
--- a/eng/Packages.Data.props
+++ b/eng/Packages.Data.props
@@ -466,7 +466,7 @@
   </ItemGroup>
 
   <PropertyGroup>
-    <TestProxyVersion>1.0.0-dev.20250805.1</TestProxyVersion>
+    <TestProxyVersion>1.0.0-dev.20250922.2</TestProxyVersion>
     <UnbrandedGeneratorVersion>1.0.0-alpha.20250922.1</UnbrandedGeneratorVersion>
     <AzureGeneratorVersion>1.0.0-alpha.20250903.2</AzureGeneratorVersion>
   </PropertyGroup>
diff --git a/eng/common/testproxy/target_version.txt b/eng/common/testproxy/target_version.txt
index f296dfcc218b..f812452b5830 100644
--- a/eng/common/testproxy/target_version.txt
+++ b/eng/common/testproxy/target_version.txt
@@ -1 +1 @@
-1.0.0-dev.20250805.1
+1.0.0-dev.20250922.2