diff --git a/.gitignore b/.gitignore
index b9b02d5..2bf2e37 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 SOURCES/bson-4.8.1.gem
+/bson-4.8.1.gem
diff --git a/sources b/sources
index 1384c2e..6331c0a 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (bson-4.8.1.gem) = 73769ba7daa6099e590b1e24e0e97eee1d7f7166
+SHA512 (bson-4.8.1.gem) = 044e527e4939b36a263c8d0dce7e263e88527cc7bf53b08f3d00168ebc3a0501eddc1b11fb6788c5d90c6150dd0ac6db19e9263b16c64b64c1928244b58a603f