diff --git a/repos.json.lock b/repos.json.lock
index 894e949c1..22893a725 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -16,8 +16,8 @@
             "url": "https://github.com/angr/nixpkgs"
         },
         "arc": {
-            "rev": "8963133891e7ba5164c9d078ffb71f75e6f68288",
-            "sha256": "1vc3cknqc1x6pk1r0fxdj1b7xw9w247m4x9s0hp84r86qjvyv5rg",
+            "rev": "0768cbe6edb0cb299b84bd56d3fe3ace0c123e65",
+            "sha256": "1ms5pdzssz59v8sc2n6jjwyib2bp3glh77xcb565fhmwxnph5kqi",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "awl-fcarza": {