diff --git a/pkgs/os-specific/linux/kernel/linux-grsecurity.nix b/pkgs/os-specific/linux/kernel/linux-grsecurity.nix
index ff47e1758c7..54b4469a608 100644
--- a/pkgs/os-specific/linux/kernel/linux-grsecurity.nix
+++ b/pkgs/os-specific/linux/kernel/linux-grsecurity.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl, perl, buildLinux, ... } @ args:
 
 import ./generic.nix (args // rec {
-  version = "4.7.3";
+  version = "4.7.4";
   extraMeta.branch = "4.7";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
-    sha256 = "16rr5nj78jh1l46baa0qgzbw44slyqw5ivfn1y7dcxrgb17bvrqc";
+    sha256 = "1zc9lwa9anyn0civwzkymaxgx7v4vwgc6aqsg390qslbazkggaa6";
   };
 
   kernelPatches = args.kernelPatches;
diff --git a/pkgs/os-specific/linux/kernel/patches.nix b/pkgs/os-specific/linux/kernel/patches.nix
index 53e7196c5c3..47057215ce2 100644
--- a/pkgs/os-specific/linux/kernel/patches.nix
+++ b/pkgs/os-specific/linux/kernel/patches.nix
@@ -100,9 +100,9 @@ rec {
   grsecurity_4_4 = throw "grsecurity stable is no longer supported";
 
   grsecurity_testing = grsecPatch
-    { kver   = "4.7.3";
-      grrev  = "201609072139";
-      sha256 = "0c70nfsa1bk07z6sivy645d9w0qkq23pwpwdm28160kfy7dampyh";
+    { kver   = "4.7.4";
+      grrev  = "201609152234";
+      sha256 = "0314lb1dp5bnq3wibxc63a8z75q0b7w6zsgd6ccmhl9vwv7sm253";
     };
 
   # This patch relaxes grsec constraints on the location of usermode helpers,