diff --git a/repos.json.lock b/repos.json.lock
index 13188afc1..b1d539ff7 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -116,8 +116,8 @@
             "url": "https://github.com/anthonyroussel/nur-packages"
         },
         "arc": {
-            "rev": "cd037324e29d65bfb54311c4b788552efacfdbd3",
-            "sha256": "02i3kw5bqbhhbasy1lx2srsnjpsxz0x489633k49c3qnxnpw26xg",
+            "rev": "7d7f797a243c964861b0856ee9117518261072b1",
+            "sha256": "001vlkrx7fbyy24zygcljz3mryjw0qz4a1w99naf8743zd1aa0s2",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "arteneko": {