diff --git a/binder/environment.yml b/binder/environment.yml
index e56385c..7faa74f 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -7,11 +7,11 @@ dependencies:
 - hatchling =1.27.0
 - httpcore =1.0.7
 - jobflow =0.2.0
-- pyiron_base =0.12.0
-- pyiron_workflow =0.13.0
+- pyiron_base =0.15.5
+- pyiron_workflow =0.15.4
 - pygraphviz =1.14
 - aiida-workgraph =0.7.4
 - plumpy =0.25.0
 - conda_subprocess =0.0.7
-- networkx =3.5
+- networkx =3.4.2
 - cwltool =3.1.20250110105449
diff --git a/example_workflows/quantum_espresso/environment.yml b/example_workflows/quantum_espresso/environment.yml
index 962ad20..1ae715d 100644
--- a/example_workflows/quantum_espresso/environment.yml
+++ b/example_workflows/quantum_espresso/environment.yml
@@ -5,5 +5,5 @@ dependencies:
 - matplotlib=3.10.1
 - xmlschema=3.4.3
 - optimade=1.2.3
-- qe=7.4
+- qe=7.5
 - qe-tools=2.0.0
diff --git a/example_workflows/quantum_espresso/qe_xml_parser/src/qe_xml_parser/schemas/qes_230310.xsd b/example_workflows/quantum_espresso/qe_xml_parser/src/qe_xml_parser/schemas/qes_230310.xsd
index 2394151..36b6b4e 100644
--- a/example_workflows/quantum_espresso/qe_xml_parser/src/qe_xml_parser/schemas/qes_230310.xsd
+++ b/example_workflows/quantum_espresso/qe_xml_parser/src/qe_xml_parser/schemas/qes_230310.xsd
@@ -1036,7 +1036,7 @@ datecode 220603
   <complexType name="symmetriesType">
     <sequence>
       <element type="unsignedByte" name="nsym"/>
-      <element type="unsignedByte" name="colin_mag"/>
+      <element type="integer" name="colin_mag"/>
       <element type="unsignedByte" name="nrot"/>
       <element type="unsignedByte" name="space_group"/>
       <element type="qes:symmetryType" name="symmetry" maxOccurs="48" minOccurs="1"/>
diff --git a/pyproject.toml b/pyproject.toml
index 41edc0b..b2b0c9f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ jobflow = [
     "jobflow>=0.1.18,<=0.2.0",
 ]
 pyiron = [
-    "pyiron_base>=0.11.10,<=0.12.0",
+    "pyiron_base>=0.11.10,<=0.15.5",
 ]
 plot = [
     "pygraphviz>=1.10,<=1.14",
diff --git a/src/python_workflow_definition/pyiron_base.py b/src/python_workflow_definition/pyiron_base.py
index 437c562..d60d345 100644
--- a/src/python_workflow_definition/pyiron_base.py
+++ b/src/python_workflow_definition/pyiron_base.py
@@ -98,11 +98,11 @@ def get_dict(**kwargs) -> dict:
 
 
 def get_list(**kwargs) -> list:
-    return list(kwargs["kwargs"].values())
+    return list(kwargs["kwargs"])
 
 
 def _remove_server_obj(nodes_dict: dict, edges_lst: list):
-    server_lst = [k for k in nodes_dict.keys() if k.startswith("server_obj_")]
+    server_lst = [k for k in nodes_dict.keys() if k.startswith("_server_obj_")]
     for s in server_lst:
         del nodes_dict[s]
         edges_lst = [ep for ep in edges_lst if s not in ep]