diff --git a/pkgs/os-specific/linux/kernel/linux-grsecurity-4.5.nix b/pkgs/os-specific/linux/kernel/linux-grsecurity-4.5.nix
index 09bd490ccfe..84d48865bcb 100644
--- a/pkgs/os-specific/linux/kernel/linux-grsecurity-4.5.nix
+++ b/pkgs/os-specific/linux/kernel/linux-grsecurity-4.5.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl, perl, buildLinux, ... } @ args:
 
 import ./generic.nix (args // rec {
-  version = "4.5.4";
+  version = "4.5.5";
   extraMeta.branch = "4.5";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
-    sha256 = "1s0mhhxx2sw93a9cin5mvjl82ah93a4sa2lfkvs6ay73mw3ifp2p";
+    sha256 = "0l7wnilqqhg3im2v04g6k2x621yckdb9bpfh8s8jq9l2fixjln99";
   };
 
   kernelPatches = args.kernelPatches;
diff --git a/pkgs/os-specific/linux/kernel/patches.nix b/pkgs/os-specific/linux/kernel/patches.nix
index 8e198e7a3ed..4a2d179b60c 100644
--- a/pkgs/os-specific/linux/kernel/patches.nix
+++ b/pkgs/os-specific/linux/kernel/patches.nix
@@ -95,9 +95,9 @@ rec {
   grsecurity_4_5 = grsecPatch
     { kernel    = pkgs.grsecurity_base_linux_4_5;
       patches   = [ grsecurity_fix_path_4_5 ];
-      kversion  = "4.5.4";
-      revision  = "201605131918";
-      sha256    = "0f5s8lj6zc4jp2cpxm7r891px3dmb6m3ximfigwq809yydg5aimv";
+      kversion  = "4.5.5";
+      revision  = "201605202102";
+      sha256    = "10b3faxb1qam1r806sskbyhmirb86plhzrakq3cvndnwrdanwr9b";
     };
 
   grsecurity_latest = grsecurity_4_5;