diff --git a/repos.json.lock b/repos.json.lock
index 18ad83fe2..a64605c41 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -16,8 +16,8 @@
             "url": "https://github.com/angr/nixpkgs"
         },
         "arc": {
-            "rev": "b2deee866d59a7364b6bc2bdc3f64a57f6b5da44",
-            "sha256": "0c1x7xwg9nz268x6s3rlgziv1r0h4w1zbv12p4cciajj8jvpz7q0",
+            "rev": "e255f67ed546bbd1a4d7b0ea3aa32a2122a125cd",
+            "sha256": "0jr6a8gky53za551iza5cv4vyy1q9c8wcbmw7fg5w0zv05hkxd6a",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "awl-fcarza": {