diff --git a/.gitignore b/.gitignore
index 7f6a5f6..912629b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /arrow-0.4.1.tar.gz
+/arrow-0.4.2.tar.gz
diff --git a/sources b/sources
index c0a0f1b..cda6bec 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-bbcd88f2105d4644730d2199d4e29953  arrow-0.4.1.tar.gz
+5caa8442fd3a84a5ad0155a1f626ef1d  arrow-0.4.2.tar.gz