diff --git a/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix b/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
index 82326a2ee73f..53478d92dcc8 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
@@ -1,13 +1,13 @@
 { stdenv, buildPackages, fetchgit, perl, buildLinux, ... } @ args:
 
 buildLinux (args // rec {
-  version = "4.20.2019.02.09";
+  version = "4.20.2019.02.20";
   modDirVersion = "4.20.0";
 
   src = fetchgit {
     url = "https://evilpiepirate.org/git/bcachefs.git";
-    rev = "09a546543006b60d44c4c51e7b40cd3ec7837a5e";
-    sha256 = "0p187vp9df0nnhawql0f2bj2sdim0f2b424106d41yxc8ayhz0d9";
+    rev = "2d1aed5672ad55f86544cb5352560d5395012136";
+    sha256 = "0b4swx0z36y4gglkjwxn3x1q0wknv4k2lbprhbing3ms0d45z9f2";
   };
 
   extraConfig = "BCACHEFS_FS m";