diff --git a/pkgs/development/python-modules/ua-parser-builtins/default.nix b/pkgs/development/python-modules/ua-parser-builtins/default.nix
index c64326ea2148..8d75882f6868 100644
--- a/pkgs/development/python-modules/ua-parser-builtins/default.nix
+++ b/pkgs/development/python-modules/ua-parser-builtins/default.nix
@@ -14,9 +14,8 @@ buildPythonPackage rec {
   sourceRoot = "${src.name}/ua-parser-builtins";
 
   postPatch = ''
-    # break dependency cycle and don't use git to determine version
+    # don't use git to determine version
     substituteInPlace pyproject.toml \
-      --replace-fail 'dependencies = ["ua-parser"]' "" \
       --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
   '';
 
diff --git a/pkgs/development/python-modules/ua-parser/default.nix b/pkgs/development/python-modules/ua-parser/default.nix
index 9544dbe3f688..2fe36aa84e7a 100644
--- a/pkgs/development/python-modules/ua-parser/default.nix
+++ b/pkgs/development/python-modules/ua-parser/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "ua-parser";
-  version = "1.0.0";
+  version = "1.0.1";
   pyproject = true;
 
   src = fetchFromGitHub {
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     repo = "uap-python";
     tag = version;
     fetchSubmodules = true;
-    hash = "sha256-byKtxmuYIsEYyuUmfnbLhfe7EKj0k7QGkK5HewiTiy4=";
+    hash = "sha256-l8EBQq5Hqw/Vx4zvWy2QQ1m7mrAiqYNK2x3yUmJj8Xw=";
   };
 
   build-system = [