diff --git a/nix/sources.json b/nix/sources.json
index 3922697..a907237 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -17,10 +17,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "977000f149bd4ddb65bf1af09552898a0f305c72",
-        "sha256": "1ad3bviywxd64g4vwk4ppjkkajd3rfqjhnp6xcz3w0ih0sbn0rh5",
+        "rev": "925ae0dee63cf2c59533a6258340812e5643428a",
+        "sha256": "1g3kkwyma23lkszdvgb4dn91g35b082k55ys8azc7j4s6vxpzmaw",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/977000f149bd4ddb65bf1af09552898a0f305c72.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/925ae0dee63cf2c59533a6258340812e5643428a.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "pre-commit-hooks.nix": {
@@ -29,10 +29,10 @@
         "homepage": "",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "14595eb18d15d6832a5c7137aefa095a624ba948",
-        "sha256": "09hx3qa936g27jz81wbr93dvi0mvj3771midvpkxm4f7wwqjh9ki",
+        "rev": "a3f7609ba73eb9ce3fe434d4339101017a430912",
+        "sha256": "05mi3s7c30wylfyxfb3hab0w9cbjahskmz4abidbxsmchjyici6a",
         "type": "tarball",
-        "url": "https://github.com/cachix/pre-commit-hooks.nix/archive/14595eb18d15d6832a5c7137aefa095a624ba948.tar.gz",
+        "url": "https://github.com/cachix/pre-commit-hooks.nix/archive/a3f7609ba73eb9ce3fe434d4339101017a430912.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }