diff --git a/repos.json.lock b/repos.json.lock
index d6fe7c6e0..16757b57c 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -81,8 +81,8 @@
             "url": "https://github.com/anthonyroussel/nur-packages"
         },
         "arc": {
-            "rev": "395a80a17201ff058460aee71f4cbbc29c339147",
-            "sha256": "1aa0i71c0zhwszayb8a0m2v45rb6fjmhcx09zllnkg7l85rymwxl",
+            "rev": "86ef1de719d5c4a770b7c501830fb3feb866d1a3",
+            "sha256": "017vipnnbbzw7i2zlfqicci0p1s3q7kcibciryhd2zwbdlq2gpyh",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "artturin": {