requirements.txt

@@ -1,6 +1,6 @@
 configparser==3.5.0
 Django==3.2.*
-django-autocomplete-light==3.9.*
+django-autocomplete-light==3.9.4
 django-cas-ng==4.3.*
 django-djconfig==0.10.0
 django-hCaptcha==0.2.0

shell.nix

@@ -1,17 +1,32 @@
+{ pkgs ? (import <nixpkgs>) {}}:
+
 let
+  pypiDataRev = "2505eb53d85cd727c87611ee4aa35152821a12b2";
+  pypiDataSha256 = "0nhl0rzlp4fgzxb15pmnq14d0rzcwhvwn40vx7fnk41z9gwxcp4c";
+
+  pypiData = builtins.fetchTarball {
+    name = "pypi-deps-db-src";
+    url = "https://github.com/DavHau/pypi-deps-db/tarball/${pypiDataRev}";
+    sha256 = "${pypiDataSha256}";
+  };
+
   mach-nix = import
     (builtins.fetchGit {
       url = "https://github.com/DavHau/mach-nix";
       ref = "refs/tags/3.5.0";
     })
-    { };
+    {
+      inherit pypiData;
+
+      python = "python39";
+    };
 
   requirements = builtins.readFile ./requirements.txt;
 
   requirements-dev = ''
     django-debug-toolbar
     ipython
-    black
+    black==22.3.0
     isort
     flake8
   '';