diff --git a/README.OpenSource b/README.OpenSource
index b6348ebff..e84a24b4b 100644
--- a/README.OpenSource
+++ b/README.OpenSource
@@ -5,7 +5,7 @@
         "License File": "LICENSE",
         "Version Number": "1.6.44",
         "Owner": "shangzhi@huawei.com",
-        "Upstream URL": "https://repo.openeuler.org/openEuler-22.03-LTS-SP3/source/Packages/libpng-1.6.44.src.rpm",
+        "Upstream URL": "http://www.libpng.org/pub/png/libpng.html",
         "Description": "Reference library for supporting the Portable Network Graphics (PNG) format."
     }
 ]
\ No newline at end of file