diff --git a/pyproject.toml b/pyproject.toml
index 74fbc6c..bb03ab4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "nomad-material-processing"
-version = "0.0.1"
+version = "0.0.2"
 description = "A plugin for NOMAD containing base sections for material processing."
 readme = "README.md"
 authors = [
@@ -21,9 +21,8 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
 ]
 dependencies = [
-    "nomad-lab==1.2.0",
+    "nomad-lab>=1.2.1.dev,<1.2.2",
     "pytest",
-    "typing-extensions==4.4.0",
     "structlog==22.3.0",
 ]
 
diff --git a/src/nomad_material_processing/__init__.py b/src/nomad_material_processing/__init__.py
index 7c2b5b9..6b384b0 100644
--- a/src/nomad_material_processing/__init__.py
+++ b/src/nomad_material_processing/__init__.py
@@ -24,42 +24,15 @@
     Quantity,
     Section,
 )
-from nomad.datamodel.data import (
-    ArchiveSection,
-)
-from nomad.datamodel.metainfo.eln import (
-    Process,
-    Ensemble,
+from nomad.datamodel.metainfo.basesections import (
+    SynthesisMethod,
+    CompositeSystem,
 )
 
 m_package = Package(name='Material Processing')
 
 
-class ActivityStep(ArchiveSection):
-    '''
-    A step in an activity.
-    '''
-    m_def = Section()
-    name = Quantity(
-        type=str,
-        description='''
-        A short and descriptive name for this step.
-        '''
-    )
-
-    def normalize(self, archive, logger: BoundLogger) -> None:
-        '''
-        The normalizer for the `ActivityStep` class.
-
-        Args:
-            archive (EntryArchive): The archive containing the section that is being
-            normalized.
-            logger (BoundLogger): A structlog logger.
-        '''
-        super(ActivityStep, self).normalize(archive, logger)
-
-
-class Substrate(Ensemble, ArchiveSection):
+class Substrate(CompositeSystem):
     '''
     A thin free standing sheet of material. Not to be confused with the substrate role
     during a deposition, which can be a `Substrate` with `ThinFilm`(s) on it.
@@ -89,7 +62,7 @@ def normalize(self, archive, logger: BoundLogger) -> None:
         super(Substrate, self).normalize(archive, logger)
 
 
-class ThinFilm(Ensemble, ArchiveSection):
+class ThinFilm(CompositeSystem):
     '''
     A thin film of material which exists as part of a stack.
     '''
@@ -118,7 +91,7 @@ def normalize(self, archive, logger: BoundLogger) -> None:
         super(ThinFilm, self).normalize(archive, logger)
 
 
-class ThinFilmStack(Ensemble, ArchiveSection):
+class ThinFilmStack(CompositeSystem):
     '''
     A stack of `ThinFilm`(s). Typically deposited on a `Substrate`.
     '''
@@ -157,7 +130,7 @@ def normalize(self, archive, logger: BoundLogger) -> None:
         super(ThinFilmStack, self).normalize(archive, logger)
 
 
-class SampleDeposition(Process, ArchiveSection):
+class SampleDeposition(SynthesisMethod):
     '''
     The process of the settling of particles (atoms or molecules) from a solution,
     suspension or vapour onto a pre-existing surface, resulting in the growth of a
diff --git a/src/nomad_material_processing/physical_vapor_deposition.py b/src/nomad_material_processing/physical_vapor_deposition.py
index 33b3765..4d94f2d 100644
--- a/src/nomad_material_processing/physical_vapor_deposition.py
+++ b/src/nomad_material_processing/physical_vapor_deposition.py
@@ -32,13 +32,13 @@
 from nomad.datamodel.metainfo.annotations import (
     ELNAnnotation,
 )
-from nomad.datamodel.metainfo.eln import (
-    Ensemble,
-    SampleID,
-    Substance,
+from nomad.datamodel.metainfo.basesections import (
+    ActivityStep,
+    CompositeSystem,
+    PureSubstance,
+    ReadableIdentifiers,
 )
 from nomad_material_processing import (
-    ActivityStep,
     SampleDeposition,
     ThinFilmStack,
 )
@@ -89,7 +89,7 @@ class PVDMaterialSource(ArchiveSection):
         description='''
         The material that is being evaporated.
         ''',
-        type=Ensemble,
+        type=CompositeSystem,
     )
     rate = SubSection(
         section_def=PVDMaterialEvaporationRate,
@@ -255,7 +255,7 @@ class PVDPressure(ArchiveSection):
 
 class PVDGasFlow(ArchiveSection):
     gas = Quantity(
-        type=Substance,
+        type=PureSubstance,
     )
     flow = Quantity(
         type=float,
@@ -374,9 +374,9 @@ def normalize(self, archive, logger: BoundLogger) -> None:
         super(PhysicalVaporDeposition, self).normalize(archive, logger)
 
 
-class PLDTarget(Ensemble):
+class PLDTarget(CompositeSystem):
     target_id = SubSection(
-        section_def = SampleID,
+        section_def = ReadableIdentifiers,
     )