diff --git a/repos.json.lock b/repos.json.lock
index c42641682..aabf7aa8e 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -46,8 +46,8 @@
             "url": "https://github.com/angr/nixpkgs"
         },
         "arc": {
-            "rev": "2a9a2247a395a1073409df9cc994f3d6e3dddbc9",
-            "sha256": "04p9jwm65lsjhkq5dgmagia428m0bn0g74pm6448l3jh5ji3mjky",
+            "rev": "3ec0e05ef08d1b5a2c34cc9f92fbeba77ae4a3f2",
+            "sha256": "11cb02r7spna9pyff12n5q2nm45ivphsmnclxakhrn4s1fkfqq8q",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "artturin": {