diff --git a/repos.json.lock b/repos.json.lock
index 1f6cd8cee..25857ea95 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": "f4aaf960984a4ad2eea2fc8553ec5501cdf36005",
-            "sha256": "1pxxhw8r14vpcfqyr9649ljgigngww80g0brnri5nasjgf1zk1m1",
+            "rev": "976c81e5da9e8ad5cca84f12d590e9c2f3c62df4",
+            "sha256": "1bdwz1rpbb92ma2v3397g315s8h3cbalb3id1hcvkjas1ml5nw6p",
             "url": "https://github.com/arcnmx/nixexprs"
         },
         "balsoft": {
@@ -61,8 +61,8 @@
             "url": "https://github.com/dguibert/nur-packages"
         },
         "dtz": {
-            "rev": "60eed1be53e8c9aaf9f9fa2b0dc8a29051f4617f",
-            "sha256": "1qr7ilbpri3nirfrv99plrg67gr288li55sl4v9iqf28p7m0n614",
+            "rev": "72e046127e09d220d1a8329d0bbd39a848c56877",
+            "sha256": "0szq7jqsc7hzlkd3j23izj2gkfhjss9v23d5n3jwy66ank8ldy2i",
             "url": "https://github.com/dtzWill/nur-packages"
         },
         "dywedir": {