diff --git a/nix/sources.json b/nix/sources.json
index d533faa..bdeb215 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -12,15 +12,15 @@
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "daedalus": {
-        "branch": "release/4.4.1",
+        "branch": "release/4.5.0-b",
         "description": "The open source cryptocurrency wallet for ada, built to grow with the community",
         "homepage": "https://daedaluswallet.io/",
         "owner": "input-output-hk",
         "repo": "daedalus",
-        "rev": "e3966baee7e41ec649344c3967dd54f0c8a1850a",
-        "sha256": "1f4l0r93wqqw8k2byw8ralssaiyflvflp1pcg1j84nf9npav27da",
+        "rev": "00aa7f3638b3250f5b45248b929e1620bd80c72b",
+        "sha256": "191p6anpga743f5gzkpnn7kmhrnfyvsmssbyc6gpq9irl8xnzn6i",
         "type": "tarball",
-        "url": "https://github.com/input-output-hk/daedalus/archive/e3966baee7e41ec649344c3967dd54f0c8a1850a.tar.gz",
+        "url": "https://github.com/input-output-hk/daedalus/archive/00aa7f3638b3250f5b45248b929e1620bd80c72b.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "iohk-nix": {