diff --git a/pkgs/build-support/grsecurity/default.nix b/pkgs/build-support/grsecurity/default.nix
index 0fd3df6d5f5..713f4cdc83e 100644
--- a/pkgs/build-support/grsecurity/default.nix
+++ b/pkgs/build-support/grsecurity/default.nix
@@ -33,7 +33,7 @@ let
 
     grKernel = if cfg.stable
                then mkKernel pkgs.linux_3_14 stable-patch
-               else mkKernel pkgs.linux_4_0 test-patch;
+               else mkKernel pkgs.linux_4_1 test-patch;
 
     ## -- grsecurity configuration ---------------------------------------------
 
diff --git a/pkgs/os-specific/linux/kernel/linux-4.0.nix b/pkgs/os-specific/linux/kernel/linux-4.0.nix
index 8607bcf70cf..eacfb396b94 100644
--- a/pkgs/os-specific/linux/kernel/linux-4.0.nix
+++ b/pkgs/os-specific/linux/kernel/linux-4.0.nix
@@ -2,7 +2,6 @@
 
 import ./generic.nix (args // rec {
   version = "4.0.8";
-  # Remember to update grsecurity!
   extraMeta.branch = "4.0";
 
   src = fetchurl {
diff --git a/pkgs/os-specific/linux/kernel/linux-4.1.nix b/pkgs/os-specific/linux/kernel/linux-4.1.nix
index 82bde253529..e8534656349 100644
--- a/pkgs/os-specific/linux/kernel/linux-4.1.nix
+++ b/pkgs/os-specific/linux/kernel/linux-4.1.nix
@@ -2,6 +2,7 @@
 
 import ./generic.nix (args // rec {
   version = "4.1.4";
+  # Remember to update grsecurity!
   extraMeta.branch = "4.1";
 
   src = fetchurl {
diff --git a/pkgs/os-specific/linux/kernel/patches.nix b/pkgs/os-specific/linux/kernel/patches.nix
index a8fc0166508..b93261d6729 100644
--- a/pkgs/os-specific/linux/kernel/patches.nix
+++ b/pkgs/os-specific/linux/kernel/patches.nix
@@ -72,10 +72,10 @@ rec {
     };
 
   grsecurity_unstable = grsecPatch
-    { kversion  = "4.0.8";
-      revision  = "201507111211";
+    { kversion  = "4.1.4";
+      revision  = "201508032312";
       branch    = "test";
-      sha256    = "1p9ym8hbwaan9pgxgn8k4rm3n33wl8ag1fzmyr5f4mxs634wgwgx";
+      sha256    = "16p1wq98qgwksav0ry6b5jyyi26s404v1k0cwpj7l7n86hxig67i";
     };
 
   grsec_fix_path =