diff --git a/pkgs/os-specific/linux/kernel/kernels-org.json b/pkgs/os-specific/linux/kernel/kernels-org.json
index 8940d8a08f2c..8a553b1f227c 100644
--- a/pkgs/os-specific/linux/kernel/kernels-org.json
+++ b/pkgs/os-specific/linux/kernel/kernels-org.json
@@ -1,7 +1,7 @@
 {
     "testing": {
-        "version": "6.7-rc5",
-        "hash": "sha256:125zdj2sxcwkfvm2ckjk3mbwfll8950bn7kr38s5pvlx2a10zv04"
+        "version": "6.7-rc6",
+        "hash": "sha256:164jik11lv35jxfbci3vdb413qi241w51jrisilvfqy8ap0ccs4k"
     },
     "6.5": {
         "version": "6.5.13",
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix b/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix
index e57b2859b8cb..7f0fa9ff7e2a 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-6.1.nix
@@ -6,7 +6,7 @@
 , ... } @ args:
 
 let
-  version = "6.1.65-rt18"; # updated by ./update-rt.sh
+  version = "6.1.67-rt20"; # updated by ./update-rt.sh
   branch = lib.versions.majorMinor version;
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
@@ -18,14 +18,14 @@ in buildLinux (args // {
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v6.x/linux-${kversion}.tar.xz";
-    sha256 = "02mj394ina3npp6qqinc4pc6afp5pg1rlbjc90g4p902d29jjwj0";
+    sha256 = "11cjqll3b7iq3mblwyzjrd5ph8avgk23f4mw4shm8j6ai5rdndvm";
   };
 
   kernelPatches = let rt-patch = {
     name = "rt";
     patch = fetchurl {
       url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-      sha256 = "0axy543q47xv5nsrw6prmy9dqvbp27wkn2brwygl05nl8grjvhr8";
+      sha256 = "1s7v4dc5hjl63h0z5nai2jpd0g739nc1573f1rlnc6cqy9y26gqg";
     };
   }; in [ rt-patch ] ++ kernelPatches;