diff --git a/aiidalab_qe/steps.py b/aiidalab_qe/steps.py
index 03a8dac03..537b67bed 100644
--- a/aiidalab_qe/steps.py
+++ b/aiidalab_qe/steps.py
@@ -728,9 +728,7 @@ def _check_resources(self):
             return  # No code selected, nothing to do.
 
         num_cpus = self.resources_config.num_cpus.value
-        on_localhost = (
-            load_code(self.pw_code.value).computer.get_hostname() == "localhost"
-        )
+        on_localhost = load_node(self.pw_code.value).computer.hostname == "localhost"
         if self.pw_code.value and on_localhost and num_cpus > 1:
             self._show_alert_message(
                 "The selected code would be executed on the local host, but "
diff --git a/setup.cfg b/setup.cfg
index 55c212794..965cfc36d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,15 +20,15 @@ project_urls =
 [options]
 packages = find:
 install_requires =
-    Jinja2~=2.11.3
-    aiida-core~=1.0
-    aiida-quantumespresso~=3.5
+    Jinja2~=3.0
+    aiida-core~=2.0
+    aiida-quantumespresso~=4.0
     aiidalab-qe-workchain@https://github.com/aiidalab/aiidalab-qe/releases/download/v22.09.1/aiidalab_qe_workchain-1.0-py3-none-any.whl
     aiidalab-widgets-base~=1.4.1
-    filelock~=3.3.0
+    filelock~=3.8
     importlib-resources~=5.2.2
     widget-bandsplot~=0.2.8
-python_requires = >=3.7
+python_requires = >=3.8
 
 [options.extras_require]
 dev =
diff --git a/src/setup.cfg b/src/setup.cfg
index b8714a7a4..b70280f60 100644
--- a/src/setup.cfg
+++ b/src/setup.cfg
@@ -18,8 +18,8 @@ project_urls =
 [options]
 packages = find:
 install_requires =
-    aiida-core~=1.0
-    aiida-quantumespresso~=3.2
+    aiida-core~=2.0
+    aiida-quantumespresso~=4.0
 python_requires = >=3.7
 
 [flake8]