diff --git a/.gitignore b/.gitignore
index 1f32988..28de56a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 SOURCES/bson-4.5.0.gem
+/bson-4.5.0.gem
diff --git a/bson-4.3.0.gem b/bson-4.3.0.gem
new file mode 100644
index 0000000..7b12680
Binary files /dev/null and b/bson-4.3.0.gem differ
diff --git a/sources b/sources
index f5aa2f0..f132443 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (bson-4.5.0.gem) = 108604eff68e763066fd214746ed3eefc7e7a10f
+SHA512 (bson-4.5.0.gem) = 82ec026cd48c9bf3d6c74ad7a14d5a152e6f13d80c3f29fd4b6a73ad02f8de527adb47d0ff9a22da0cb19297a4937581806f985cc67f3e5d7b6142c3c9249e9e