diff --git a/pkgs/development/python-modules/ttp/default.nix b/pkgs/development/python-modules/ttp/default.nix
index 700f97a68b5f..653ba4ad7171 100644
--- a/pkgs/development/python-modules/ttp/default.nix
+++ b/pkgs/development/python-modules/ttp/default.nix
@@ -64,6 +64,9 @@ buildPythonPackage rec {
 
   disabledTests = [
     # data structure mismatches
+    "test_global_output_deepdiff_with_var_before"
+    "test_group_specific_output_deepdiff_with_var_before"
+    "test_group_specific_output_deepdiff_with_var_before_with_add_field"
     "test_yangson_validate"
     "test_yangson_validate_yang_lib_in_output_tag_data"
     "test_yangson_validate_multiple_inputs_mode_per_input_with_yang_lib_in_file"