diff --git a/repos.json.lock b/repos.json.lock
index ecb14ec0f..49e36604f 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -76,8 +76,8 @@
             "url": "https://github.com/angr/nixpkgs"
         },
         "arc": {
-            "rev": "01b87317457ba25a44736ae31bffce3b13dd2c9f",
-            "sha256": "0jlkx5mblanhqlg3k15ablmgag1g90gzzfrid25ia6wl61wsjcsx",
+            "rev": "bb3fedd5ec344f540d4d07659f1cae5a91e997b8",
+            "sha256": "0yq9329xd8xkjh1jxfim81s7gyy6hc0az4jg2922jbpcj2mkxn0y",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "artturin": {