diff --git a/npins/sources.json b/npins/sources.json
index 6cb0fd3..da6b10d 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -105,8 +105,8 @@
     "nixos-23.11": {
       "type": "Channel",
       "name": "nixos-23.11",
-      "url": "https://releases.nixos.org/nixos/23.11/nixos-23.11.1494.b4372c4924d9/nixexprs.tar.xz",
-      "hash": "0bisbm1081zyhicnc3hjmc04gq99lb60m1h4wpxb2jbmxmq1c3gz"
+      "url": "https://releases.nixos.org/nixos/23.11/nixos-23.11.1697.781e2a9797ec/nixexprs.tar.xz",
+      "hash": "0c8pky6klmm21m3n659rwa1ls7qk2wjjw2qzxfcagb97kvf5dq58"
     },
     "nixos-python": {
       "type": "Git",
@@ -116,15 +116,15 @@
         "repo": "nixpkgs"
       },
       "branch": "python-updates",
-      "revision": "b89d6c95e443b1114034ac65c974b2c91fb33db1",
-      "url": "https://github.com/NixOS/nixpkgs/archive/b89d6c95e443b1114034ac65c974b2c91fb33db1.tar.gz",
-      "hash": "106iz6i7b4pppwmhy9xn8ap403vvms0vhbr4z8siz0hffdqildl8"
+      "revision": "16874860fc550ef58f3da5ebb8e4fed9c4a26f21",
+      "url": "https://github.com/NixOS/nixpkgs/archive/16874860fc550ef58f3da5ebb8e4fed9c4a26f21.tar.gz",
+      "hash": "1dfdgvaisbxf39027n671393ly6n5rmjbq1l54ac9jn691kxm0w6"
     },
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.05pre553710.010c7296f3b1/nixexprs.tar.xz",
-      "hash": "1h6q7vpy8rwcxfc7l34kvix1rhirgxysn7n0r7ivmwhd9s9rbbw7"
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-24.05pre558296.e97b3e4186bc/nixexprs.tar.xz",
+      "hash": "1vjj32q29irc02f7g9iwqz0xdmkgkzg5xjqsj0w4556awb8cq7la"
     },
     "www-eleves": {
       "type": "Git",
@@ -133,9 +133,9 @@
         "url": "https://git.dgnum.eu/DGNum/www.eleves.ens.fr.git"
       },
       "branch": "main",
-      "revision": "065d40b69bc3c502ad4befa9e4a371624e444e0a",
+      "revision": "41ef3fb326a540cb8ebd7d84b4f742f9416ef484",
       "url": null,
-      "hash": "1m8f6xv0413dhlw5s4v1dp2sclagr0frrlg9kp2k2ldf03vfar7y"
+      "hash": "10zhsc50wzcydzv73gi3q7rlbpcm5nzhph0q6py3wngrkz048b23"
     }
   },
   "version": 3