diff --git a/repos.json.lock b/repos.json.lock
index 4cf8594eb..7f7ecddc4 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -11,8 +11,8 @@
             "url": "https://gricad-gitlab.univ-grenoble-alpes.fr/Projets-INFO4/18-19/19/code"
         },
         "arc": {
-            "rev": "26261cbcc274425de8ed3c9116eeb0c9a1beec34",
-            "sha256": "0vp1g5p0vwg7mjg9g9hr4vf6sm528hzkscmq4lzxsn85g4gfprfc",
+            "rev": "0aa464d94adf583a43729488fc5a5fb38d7b3a64",
+            "sha256": "06jcysgcj8dm02xlmqfnc0qyh16d5n93rk34szflv9sri99qik7y",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "balsoft": {
@@ -61,8 +61,8 @@
             "url": "https://github.com/dguibert/nur-packages"
         },
         "dtz": {
-            "rev": "bfed8369d8c982c110d1c015a9ab9a839ef5ce2d",
-            "sha256": "1f2h9pha0qgvg5kd7napf1i09b2fbfwrjsydfjkwvakkjimhcmsb",
+            "rev": "4e230a9cc33a9c8cb6de27382eb12e924c066f86",
+            "sha256": "109hgk7vp4j0ynm33l7a94kagr0sjz4pv9358ck17r9l2lmhpwbq",
             "url": "https://github.com/dtzWill/nur-packages"
         },
         "dywedir": {