diff --git a/nix/sources.json b/nix/sources.json
index 44b5806..f68ae73 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -1,14 +1,14 @@
 {
     "cardano-node": {
-        "branch": "master",
+        "branch": "refs/tags/1.19.0",
         "description": "The core component that is used to participate in a Cardano decentralised blockchain.",
         "homepage": "https://cardano.org",
         "owner": "input-output-hk",
         "repo": "cardano-node",
-        "rev": "b88dceb02413356a82f184c8269db3622b4f857b",
-        "sha256": "00xx1flbrqvxalw3j4lcfp5q2gfzsf82nzwwgaq1mpm9pqzvqky3",
+        "rev": "4814003f14340d5a1fc02f3ac15437387a7ada9f",
+        "sha256": "1d19dhah6llczwycb2wh517qzc9bmv41fjj59l5m3jmz652c2ira",
         "type": "tarball",
-        "url": "https://github.com/input-output-hk/cardano-node/archive/b88dceb02413356a82f184c8269db3622b4f857b.tar.gz",
+        "url": "https://github.com/input-output-hk/cardano-node/archive/4814003f14340d5a1fc02f3ac15437387a7ada9f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "daedalus": {