diff --git a/.channelStable.json b/.channelStable.json
index bc73894..5fc7397 100644
--- a/.channelStable.json
+++ b/.channelStable.json
@@ -1,7 +1,7 @@
 {
   "url": "https://github.com/NixOS/nixpkgs-channels.git",
-  "rev": "d85e435b7bded2596d7b201bcd938c94d8a921c1",
-  "date": "2019-12-15T02:29:01+01:00",
-  "sha256": "1msjm4kx1z73v444i1iybvmc7z0kfkbn9nzr21rn5yc4ql1jwf99",
+  "rev": "0d9055a2ac29eb1f8a7c27f143934a12b6592e2b",
+  "date": "2019-12-28T21:00:23+01:00",
+  "sha256": "1v7lsqh0v0nz7xwll395ij0bzb8979fkmianh73pmr7z5khww55a",
   "fetchSubmodules": false
 }
diff --git a/.channelUnstable.json b/.channelUnstable.json
index 10ae9ef..fd75039 100644
--- a/.channelUnstable.json
+++ b/.channelUnstable.json
@@ -1,7 +1,7 @@
 {
   "url": "https://github.com/NixOS/nixpkgs-channels.git",
-  "rev": "d942688fc137169b577e7bf0c09e01a2ac919b73",
-  "date": "2019-12-18T15:33:54+01:00",
-  "sha256": "01072zihcgi0vwld69ffcr08na88703wy6plxp5cb3n1wysfx81g",
+  "rev": "b0bbacb52134a7e731e549f4c0a7a2a39ca6b481",
+  "date": "2019-12-26T13:51:10+02:00",
+  "sha256": "15ix4spjpdm6wni28camzjsmhz0gzk3cxhpsk035952plwdxhb67",
   "fetchSubmodules": false
 }