diff --git a/.gitignore b/.gitignore
index 5ee9629..5b2ff3a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ pyodbc-2.1.5.zip
 /pyodbc-3.0.6.zip
 /pyodbc-3.0.7.zip
 /pyodbc-3.0.10.tar.gz
+/pyodbc-4.0.27.tar.gz
diff --git a/sources b/sources
index 83b2315..2b83a8b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-c09e293c85dd650152d02a78507f3fe4  pyodbc-3.0.10.tar.gz
+SHA512 (pyodbc-4.0.27.tar.gz) = 40ef8e08509dcebc3684a7fddba6f2ca7e835dda8658f0680c7254a641f47731db140e4fec6fff746ca08d3ea82252fc5b976a008f7553e43fce66116a6fc894