diff --git a/pkgs/os-specific/linux/kernel/linux-5.12.nix b/pkgs/os-specific/linux/kernel/linux-5.12.nix
index 9450b4ec304..3b63b3d1895 100644
--- a/pkgs/os-specific/linux/kernel/linux-5.12.nix
+++ b/pkgs/os-specific/linux/kernel/linux-5.12.nix
@@ -3,7 +3,7 @@
 with lib;
 
 buildLinux (args // rec {
-  version = "5.12.2";
+  version = "5.12.3";
 
   # modDirVersion needs to be x.y.z, will automatically add .0 if needed
   modDirVersion = if (modDirVersionArg == null) then concatStringsSep "." (take 3 (splitVersion "${version}.0")) else modDirVersionArg;
@@ -13,7 +13,7 @@ buildLinux (args // rec {
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v5.x/linux-${version}.tar.xz";
-    sha256 = "03gp5vq8vkwvksjsa1birds37rmrr73s9ik6m1wvgz8mdncvk64c";
+    sha256 = "13c7jbizf254rh4arvlgzk87vx7sz6psba47jnax23lbgal18dqk";
   };
 
   kernelTests = args.kernelTests or [ nixosTests.kernel-generic.linux_5_12 ];