diff --git a/repos.json.lock b/repos.json.lock
index aceaf77f4..8cd3f6518 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -46,8 +46,8 @@
             "url": "https://github.com/angr/nixpkgs"
         },
         "arc": {
-            "rev": "cc8fc4d260919aa9d0697694740d20eb82488b03",
-            "sha256": "0cp2h84wia2c25jfl8yz8k6gb63wpzypx1rmvy6mnghrmk2ls837",
+            "rev": "ba8ad32f05b3a67427d61a6284fe6e6def8701b6",
+            "sha256": "1zw0i7n9s1nak6wspv1nylcvi9man64f401rhnnk766ijhm8z1bl",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "artturin": {