Update README.md
diff --git a/src/Download/README.md b/src/Download/README.md
index 586a2ae..81906a8 100644
--- a/src/Download/README.md
+++ b/src/Download/README.md
@@ -35,7 +35,7 @@
             <td><a href="https://downloads.apache.org/iotdb/1.1.2/apache-iotdb-1.1.2-all-bin.zip.asc">ASC</a></td>
             <td rowspan="2"><a href="https://www.apache.org/dyn/closer.cgi/iotdb/1.1.2/apache-iotdb-1.1.2-source-release.zip">Sources</a></td>
             <td rowspan="2"><a href="https://downloads.apache.org/iotdb/1.1.2/apache-iotdb-1.1.2-source-release.zip.sha512">SHA512</a></td>
-            <td rowspan="2"><a href="https://downloads.apache.org/iotdb/1.1.2/apache-iotdb-1.1.1-source-release.zip.asc">ASC</a></td>
+            <td rowspan="2"><a href="https://downloads.apache.org/iotdb/1.1.2/apache-iotdb-1.1.2-source-release.zip.asc">ASC</a></td>
             <td rowspan="2"><a href="https://dlcdn.apache.org/iotdb/1.1.2/RELEASE_NOTES.md">release notes</a></td>
       </tr>
       <tr>