diff --git a/repos.json.lock b/repos.json.lock
index 80c589bf6..20ebb6a82 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -26,8 +26,8 @@
             "url": "https://github.com/angr/nixpkgs"
         },
         "arc": {
-            "rev": "f3f24ef4226a8ff3531d9a3e005c4993ed0d7ba2",
-            "sha256": "0g21k2myf8c4bsc2wyp3viiix52qgfvphklgwqpw2zw6vimvz54w",
+            "rev": "e1cb4a4be443767407efdddf81a206d3884fecda",
+            "sha256": "1w45y08i6p5abjqvrvdlcj8mxz7j6223s2257i33bwwjlqwy1fjc",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "awl-fcarza": {