diff --git a/pkgs/os-specific/linux/kernel/linux-testing.nix b/pkgs/os-specific/linux/kernel/linux-testing.nix
index 3a9cb410487..5006f0519eb 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing.nix
@@ -1,13 +1,13 @@
 { stdenv, fetchurl, perl, buildLinux, ... } @ args:
 
 import ./generic.nix (args // rec {
-  version = "4.4-rc3";
-  modDirVersion = "4.4.0-rc3";
+  version = "4.4-rc4";
+  modDirVersion = "4.4.0-rc4";
   extraMeta.branch = "4.4";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v4.x/testing/linux-${version}.tar.xz";
-    sha256 = "1c45bjclz5y039nqwrfil8yzv108r6vvbjfrq7dpz64iyf7iqnv4";
+    sha256 = "040ddm61rifscssnycd1lq9bfni3yrsdrrgg172rb9h5d7ya6981";
   };
 
   features.iwlwifi = true;