diff --git a/repos.json.lock b/repos.json.lock
index 78ce3be9c..bb15db7d9 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -46,8 +46,8 @@
             "url": "https://github.com/angr/nixpkgs"
         },
         "arc": {
-            "rev": "7ac2f4ca717121b67dbf4a9cdccfe78c767fbd3c",
-            "sha256": "0ch01qh04xqax94wgwcy7angwqy1i1p9jw3rmxwyyq8k2xj6zbf2",
+            "rev": "934c515454ac9d3cee9a522e02ba6ca016883f5d",
+            "sha256": "05fisfxflpryd3nrf099nhsbnr6vaq6431dpv1lqml2xlxj0156s",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "artturin": {