diff --git a/pkgs/os-specific/linux/kernel/kernels-org.json b/pkgs/os-specific/linux/kernel/kernels-org.json
index 31f3908dab63..dce3eab7c26b 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": "6.6-rc5",
-        "hash": "sha256:19hnqly7ins0ycirjwrp3g0am43h2i62qfd1y81yhiy1dpyhbbc9"
+        "version": "6.6-rc6",
+        "hash": "sha256:1yzzf0bswqqarmbkw17vqcrkghivin7ca84x919aa2i8z7fyg2hw"
     },
     "6.5": {
         "version": "6.5.7",