diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 776a422df735..26bb9f82063b 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -248,7 +248,7 @@ let
       DRM_LOAD_EDID_FIRMWARE = yes;
       VGA_SWITCHEROO         = yes; # Hybrid graphics support
       DRM_GMA500             = whenAtLeast "5.12" module;
-      DRM_GMA600             = yes;
+      DRM_GMA600             = whenOlder "5.13" yes;
       DRM_GMA3600            = whenOlder "5.12" yes;
       DRM_VMWGFX_FBCON       = yes;
       # necessary for amdgpu polaris support
@@ -443,7 +443,7 @@ let
       SECURITY_SELINUX_BOOTPARAM_VALUE = whenOlder "5.1" (freeform "0"); # Disable SELinux by default
       # Prevent processes from ptracing non-children processes
       SECURITY_YAMA                    = option yes;
-      DEVKMEM                          = no; # Disable /dev/kmem
+      DEVKMEM                          = whenOlder "5.13" no; # Disable /dev/kmem
 
       USER_NS                          = yes; # Support for user namespaces
 
@@ -698,7 +698,7 @@ let
       THRUSTMASTER_FF    = yes;
       ZEROPLUS_FF        = yes;
 
-      MODULE_COMPRESS    = yes;
+      MODULE_COMPRESS    = whenOlder "5.13" yes;
       MODULE_COMPRESS_XZ = yes;
 
       SYSVIPC            = yes;  # System-V IPC
diff --git a/pkgs/os-specific/linux/kernel/linux-testing.nix b/pkgs/os-specific/linux/kernel/linux-testing.nix
index f0d418693466..4e2ef7b4652e 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing.nix
@@ -3,7 +3,7 @@
 with lib;
 
 buildLinux (args // rec {
-  version = "5.12-rc6";
+  version = "5.13-rc6";
   extraMeta.branch = "5.12";
 
   # modDirVersion needs to be x.y.z, will always add .0
@@ -11,7 +11,7 @@ buildLinux (args // rec {
 
   src = fetchurl {
     url = "https://git.kernel.org/torvalds/t/linux-${version}.tar.gz";
-    sha256 = "0w0zk2byimdbcvn8myqaq0ab6lyd43493fnkv9a1407dimpxb03d";
+    sha256 = "sha256-PunFd6tOsmrsPItp2QX4TEVxHnvvi1BMSwWio/DTlMU=";
   };
 
   kernelTests = args.kernelTests or [ nixosTests.kernel-generic.linux_testing ];