diff --git a/pkgs/os-specific/linux/kernel/hardened/patches.json b/pkgs/os-specific/linux/kernel/hardened/patches.json
index a678dc7309f9..ff410b2ab2c5 100644
--- a/pkgs/os-specific/linux/kernel/hardened/patches.json
+++ b/pkgs/os-specific/linux/kernel/hardened/patches.json
@@ -18,5 +18,10 @@
         "name": "linux-hardened-5.8.16.a.patch",
         "sha256": "0b7bfzknz2am9pfypazqzky9bcd6659sakcdx2a7p1i3bj6zxnn1",
         "url": "https://github.com/anthraxx/linux-hardened/releases/download/5.8.16.a/linux-hardened-5.8.16.a.patch"
+    },
+    "5.9": {
+        "name": "linux-hardened-5.9.1.a.patch",
+        "sha256": "07897dgkldm2dxsriapjlg9b118sd32qmd1z8xja01xcgd3r6vp7",
+        "url": "https://github.com/anthraxx/linux-hardened/releases/download/5.9.1.a/linux-hardened-5.9.1.a.patch"
     }
 }