diff --git a/pkgs/development/python-modules/asn1tools/default.nix b/pkgs/development/python-modules/asn1tools/default.nix
index 0d1cab628056..57f797c72614 100644
--- a/pkgs/development/python-modules/asn1tools/default.nix
+++ b/pkgs/development/python-modules/asn1tools/default.nix
@@ -1,15 +1,23 @@
 {
   lib,
-  bitstruct,
   buildPythonPackage,
-  diskcache,
   fetchFromGitHub,
-  prompt-toolkit,
+
+  # build-system
+  setuptools,
+
+  # dependencies
+  bitstruct,
   pyparsing,
+
+  # optional-dependencies
+  prompt-toolkit,
+  diskcache,
+
+  # tests
   pytest-xdist,
   pytestCheckHook,
-  pythonOlder,
-  setuptools,
+  versionCheckHook,
 }:
 
 buildPythonPackage rec {
@@ -17,8 +25,6 @@ buildPythonPackage rec {
   version = "0.167.0";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
-
   src = fetchFromGitHub {
     owner = "eerimoq";
     repo = "asn1tools";
@@ -41,7 +47,9 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     pytest-xdist
     pytestCheckHook
+    versionCheckHook
   ] ++ lib.flatten (builtins.attrValues optional-dependencies);
+  versionCheckProgramArg = [ "--version" ];
 
   pythonImportsCheck = [ "asn1tools" ];
 
@@ -49,13 +57,23 @@ buildPythonPackage rec {
     # assert exact error message of pyparsing which changed and no longer matches
     # https://github.com/eerimoq/asn1tools/issues/167
     "test_parse_error"
+
+    # IndexError: string index out of range
+    # https://github.com/eerimoq/asn1tools/issues/191
+    "test_c_source"
+    "test_command_line_generate_c_source_oer"
+    "test_missing_parameterized_value"
+    "test_parse_parameterization"
+    # SystemExit: error: string index out of range
+    "test_command_line_generate_c_source_uper"
+    "test_command_line_generate_rust_source_uper"
   ];
 
-  meta = with lib; {
+  meta = {
     description = "ASN.1 parsing, encoding and decoding";
     homepage = "https://github.com/eerimoq/asn1tools";
     changelog = "https://github.com/eerimoq/asn1tools/releases/tag/${version}";
-    license = licenses.mit;
+    license = lib.licenses.mit;
     maintainers = [ ];
     mainProgram = "asn1tools";
   };