diff --git a/flake.lock b/flake.lock
index 6567c37..2f97068 100644
--- a/flake.lock
+++ b/flake.lock
@@ -373,11 +373,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1676488781,
-        "narHash": "sha256-lP2UWGwangM1OSBOx0EFXOtnSBuyTJn3yza3Ujb9/C8=",
+        "lastModified": 1678831668,
+        "narHash": "sha256-Sl9kJfTymtYltiCKJEd9IYdakyed4FsAZR7V7n609Bs=",
         "ref": "refs/heads/main",
-        "rev": "5f07d4e256c1d8caefd52563737b1e3c023b5d35",
-        "revCount": 21,
+        "rev": "7ca48ab76ed8736f984279131947a5ed15fa6ade",
+        "revCount": 24,
         "type": "git",
         "url": "https://git.pleshevski.ru/mynix/tools"
       },
@@ -490,11 +490,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1672756850,
-        "narHash": "sha256-Smbq3+fitwA13qsTMeaaurv09/KVbZfW7m7lINwzDGA=",
+        "lastModified": 1677262115,
+        "narHash": "sha256-DPkHiJw2QnKYAzQXBlwelwghxbcD5oigK2kLPHMpMQ8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "298add347c2bbce14020fcb54051f517c391196b",
+        "rev": "806075be2bdde71895359ed18cb530c4d323e6f6",
         "type": "github"
       },
       "original": {
@@ -800,11 +800,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1672803774,
-        "narHash": "sha256-zYC7yhAdbw8vYQK/HTdVrS3op57EtczkZ8so2P75lyA=",
+        "lastModified": 1677352496,
+        "narHash": "sha256-uHQnWfjib3EbjKr/1x1XwQRshiHzsJUG7muhSkB5/uc=",
         "ref": "refs/heads/main",
-        "rev": "045623a58dea203f81f6fd08e97955f4ccd252b5",
-        "revCount": 10,
+        "rev": "2b2aa5f8e644b76b6d4f54f9b7168d651f8bb3e4",
+        "revCount": 15,
         "type": "git",
         "url": "https://git.pleshevski.ru/pleshevskiy/wd2"
       },
diff --git a/users/modules/dev_tools.nix b/users/modules/dev_tools.nix
index 0104119..9a67e43 100644
--- a/users/modules/dev_tools.nix
+++ b/users/modules/dev_tools.nix
@@ -40,6 +40,7 @@ in
     wd2 # my wrapper for d2
     gnumake
     libnotify # tool to send notifications via cli
+    fawltydeps # Python dependency checker
 
     deno
     nickel