diff --git a/.gitignore b/.gitignore
index 6e31a31..7120f38 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@
 /btrfs-progs-v3.18.2.tar.xz
 /btrfs-progs-v3.19.tar.xz
 /btrfs-progs-v3.19.1.tar.xz
+/btrfs-progs-v4.0.tar.xz
diff --git a/sources b/sources
index ac9d4a4..152372a 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-ec3b3c99df18633ddc9e41f0680c5a51  btrfs-progs-v3.19.1.tar.xz
+38e79509adc689ca7a88860b91954a02  btrfs-progs-v4.0.tar.xz