diff --git a/zfs-cachyos/update.py b/zfs-cachyos/update.py
index a30b273..30e09ae 100755
--- a/zfs-cachyos/update.py
+++ b/zfs-cachyos/update.py
@@ -60,7 +60,7 @@ def get_latest_zfs_cachyos_branch() -> Optional[str]:
 
 
 def run_nix_prefetch_git(branch: str) -> Optional[Dict[str, Any]]:
-    cmd = ["nix-prefetch-git", "https://github.com/CachyOS/zfs.git", "--branch-name", branch]
+    cmd = ["nix-prefetch-git", "https://github.com/CachyOS/zfs.git", "--rev", f"refs/heads/{branch}"]
 
     print(f"Running command: {' '.join(cmd)}")
     result = subprocess.run(cmd, capture_output=True, text=True, timeout=300)
diff --git a/zfs-cachyos/version.json b/zfs-cachyos/version.json
index b393a24..36a4ed2 100644
--- a/zfs-cachyos/version.json
+++ b/zfs-cachyos/version.json
@@ -1,11 +1,11 @@
 {
   "zfs_branch": "zfs-2.3.6-cachyos",
   "url": "https://github.com/CachyOS/zfs.git",
-  "rev": "4ddaf45ba468c6953a4fcdbfe79795f74fa6e489",
-  "date": "2025-03-13T10:35:31-04:00",
-  "path": "/nix/store/clbq55q8pca9im5jsr28g472x0l0y50w-zfs",
-  "sha256": "07gh7x7lwq013ni4jb6vxavhf348g8zl3db65sz408lsp2bpx0v5",
-  "hash": "sha256-ZYN+l7iaIkC+Lma1QT96iAwHt+rbLEmiHQFgTk8/8B0=",
+  "rev": "7de9800e5ce45d03c797be57a3e959fc914b2adb",
+  "date": "2025-12-01T18:55:42+01:00",
+  "path": "/nix/store/x64hj85rqa30plx984lrcsps8cf2i9mq-zfs",
+  "sha256": "19rcwhq82hclkc9kpba6saal30j6x2sx23lf1skgc05z5kgm3jqm",
+  "hash": "sha256-FctR3yy/APamDo4O0bXoRoJBldJGrTsTm5RBgTDkLKc=",
   "fetchLFS": false,
   "fetchSubmodules": false,
   "deepClone": false,