diff --git a/repos.json.lock b/repos.json.lock
index fae8f0c8b..6cabccd59 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -46,8 +46,8 @@
             "url": "https://github.com/angr/nixpkgs"
         },
         "arc": {
-            "rev": "62a97942182b0ab36cd31efe0c206f4f56f3b508",
-            "sha256": "04g89cisbd4x9jhck0d64k8mr0w0nni09wh0y6bwy3nq8f0z6cdy",
+            "rev": "c294222dc0cfeb77fc1ee281e21121581b831e08",
+            "sha256": "06z5ql2sfwh4526pgwnx93firyaaa4l2xsqxivkm2diyhmr1jm65",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "artturin": {