diff --git a/nix/sources.json b/nix/sources.json
index 69278ab..5954a0c 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": "https://nix-community.github.io/home-manager/",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "845a5c4c073f74105022533907703441e0464bc3",
-        "sha256": "0l3pcd38p4iq46ipc5h3cw7wmr9h8rbn34h8a5a4v8hcl21s8r5x",
+        "rev": "2f23fa308a7c067e52dfcc30a0758f47043ec176",
+        "sha256": "00wp0s9b5nm5rsbwpc1wzfrkyxxmqjwsc1kcibjdbfkh69arcpsn",
         "type": "tarball",
-        "url": "https://github.com/nix-community/home-manager/archive/845a5c4c073f74105022533907703441e0464bc3.tar.gz",
+        "url": "https://github.com/nix-community/home-manager/archive/2f23fa308a7c067e52dfcc30a0758f47043ec176.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "niv": {
@@ -17,10 +17,10 @@
         "homepage": "https://github.com/nmattia/niv",
         "owner": "nmattia",
         "repo": "niv",
-        "rev": "f7c538837892dd2eb83567c9f380a11efb59b53f",
-        "sha256": "0xl33k24vfc29cg9lnp95kvcq69qbq5fzb7jk9ig4lgrhaarh651",
+        "rev": "55422d6f2618cd2195eeafa3f16ae63fde723c15",
+        "sha256": "1s6m41hhsydf3lw6ihksc904vcpyd5agwiqq8hb8plyqvsyn74ba",
         "type": "tarball",
-        "url": "https://github.com/nmattia/niv/archive/f7c538837892dd2eb83567c9f380a11efb59b53f.tar.gz",
+        "url": "https://github.com/nmattia/niv/archive/55422d6f2618cd2195eeafa3f16ae63fde723c15.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }