diff --git a/src/aiida_common_workflows/workflows/dissociation.py b/src/aiida_common_workflows/workflows/dissociation.py
index 30ad4cef..ea3d2150 100644
--- a/src/aiida_common_workflows/workflows/dissociation.py
+++ b/src/aiida_common_workflows/workflows/dissociation.py
@@ -170,7 +170,7 @@ def get_sub_workchain_builder(self, distance, reference_workchain=None):
         builder = process_class.get_input_generator().get_builder(
             structure=molecule, reference_workchain=reference_workchain, **self.inputs.generator_inputs
         )
-        builder._update(**self.inputs.get('sub_process', {}))
+        builder._merge(**self.inputs.get('sub_process', {}))
 
         distance_node = molecule.creator.inputs.distance
 
diff --git a/src/aiida_common_workflows/workflows/eos.py b/src/aiida_common_workflows/workflows/eos.py
index 03d238c2..19661919 100644
--- a/src/aiida_common_workflows/workflows/eos.py
+++ b/src/aiida_common_workflows/workflows/eos.py
@@ -144,7 +144,7 @@ def get_sub_workchain_builder(self, scale_factor, reference_workchain=None):
             base_inputs['reference_workchain'] = reference_workchain
 
         builder = process_class.get_input_generator().get_builder(**base_inputs, **self.inputs.generator_inputs)
-        builder._update(**self.inputs.get('sub_process', {}))
+        builder._merge(**self.inputs.get('sub_process', {}))
 
         return builder, structure
 
diff --git a/src/aiida_common_workflows/workflows/relax/abinit/generator.py b/src/aiida_common_workflows/workflows/relax/abinit/generator.py
index 9d69595b..7778fc45 100644
--- a/src/aiida_common_workflows/workflows/relax/abinit/generator.py
+++ b/src/aiida_common_workflows/workflows/relax/abinit/generator.py
@@ -154,7 +154,7 @@ def _construct_builder(self, **kwargs) -> engine.ProcessBuilder:  # noqa: PLR091
         else:
             inputs = generate_inputs(self.process_class._process_class, protocol, code, structure, override)
 
-        builder._update(inputs)
+        builder._merge(inputs)
 
         # RelaxType
         if relax_type == RelaxType.NONE:
diff --git a/src/aiida_common_workflows/workflows/relax/castep/generator.py b/src/aiida_common_workflows/workflows/relax/castep/generator.py
index 4c6e1cbd..655ccbfc 100644
--- a/src/aiida_common_workflows/workflows/relax/castep/generator.py
+++ b/src/aiida_common_workflows/workflows/relax/castep/generator.py
@@ -203,7 +203,7 @@ def _construct_builder(self, **kwargs) -> engine.ProcessBuilder:  # noqa: PLR091
             inputs['calc']['kpoints'] = previous_kpoints
             inputs['base'].pop('kpoints_spacing', None)
 
-        builder._update(inputs)
+        builder._merge(inputs)
 
         return builder
 
diff --git a/src/aiida_common_workflows/workflows/relax/fleur/generator.py b/src/aiida_common_workflows/workflows/relax/fleur/generator.py
index d1c82d93..587bcb51 100644
--- a/src/aiida_common_workflows/workflows/relax/fleur/generator.py
+++ b/src/aiida_common_workflows/workflows/relax/fleur/generator.py
@@ -201,7 +201,7 @@ def _construct_builder(self, **kwargs) -> engine.ProcessBuilder:  # noqa: PLR091
             'wf_parameters': wf_para,
         }
 
-        builder._update(inputs)
+        builder._merge(inputs)
 
         return builder