diff --git a/nix/sources.json b/nix/sources.json
index 97ba58c..22e1997 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -29,10 +29,10 @@
         "homepage": "",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "89dbade60e2ba2914de6bea7d8688cd88b9cba13",
-        "sha256": "110mh3ypldx3gf883j2b0v590wid6dhh1amqy06qn3ih2lcndgn8",
+        "rev": "1b6c001fd93989f05633d66858d9f82ba58c151e",
+        "sha256": "1f34q8cqc4k82hy3r81fpv6gycfb4qsa47kifnxh7idma9rfasrp",
         "type": "tarball",
-        "url": "https://github.com/nix-community/emacs-overlay/archive/89dbade60e2ba2914de6bea7d8688cd88b9cba13.tar.gz",
+        "url": "https://github.com/nix-community/emacs-overlay/archive/1b6c001fd93989f05633d66858d9f82ba58c151e.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "emacs-so-long": {