diff --git a/eng/common/testproxy/target_version.txt b/eng/common/testproxy/target_version.txt
index ac6bc7f9f5..977b480f4f 100644
--- a/eng/common/testproxy/target_version.txt
+++ b/eng/common/testproxy/target_version.txt
@@ -1 +1 @@
-1.0.0-dev.20250221.1
+1.0.0-dev.20250501.1