diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index f29bd4c..cb1f046 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -11,8 +11,6 @@ jobs:
       matrix:
         python-version:
           - '3.8'
-          - '3.9'
-          - '3.10'
           - '3.11'
         pip-version:
           - 22.0.4
diff --git a/hastexo/hastexo.py b/hastexo/hastexo.py
index 0d7bf51..eb2a07d 100644
--- a/hastexo/hastexo.py
+++ b/hastexo/hastexo.py
@@ -8,15 +8,23 @@
 
 from xblock.core import XBlock, XML_NAMESPACES
 from xblock.fields import Scope, Float, String, Dict, List, Integer, Boolean
-from xblock.fragment import Fragment
+try:  # XBlock 2+
+    from web_fragments.fragment import Fragment
+    from xblock.utils.resources import ResourceLoader
+    from xblock.utils.settings import XBlockWithSettingsMixin
+    from xblock.utils.studio_editable import StudioEditableXBlockMixin
+except ImportError:  # Compatibility with XBlock<2
+    from xblock.fragment import Fragment
+    from xblockutils.resources import ResourceLoader
+    from xblockutils.settings import XBlockWithSettingsMixin
+    from xblockutils.studio_editable import (
+        NestedXBlockSpec,
+        StudioContainerWithNestedXBlocksMixin,
+        StudioEditableXBlockMixin,
+    )
+
 from xblock.scorable import ScorableXBlockMixin, Score
-from xblockutils.resources import ResourceLoader
-from xblockutils.studio_editable import (
-    NestedXBlockSpec,
-    StudioContainerWithNestedXBlocksMixin,
-    StudioEditableXBlockMixin,
-)
-from xblockutils.settings import XBlockWithSettingsMixin
+
 
 from distutils.util import strtobool
 from django.db import transaction
@@ -305,12 +313,22 @@ def parse_attributes(tag, node, block):
             block.providers.append(provider)
 
     @classmethod
-    def parse_xml(cls, node, runtime, keys, id_generator):
+    def parse_xml(cls, node, runtime, keys, id_generator=None):
         """
         Use `node` to construct a new block.
         """
         block = runtime.construct_xblock_from_class(cls, keys)
 
+        # Prior to XBlock 2.0, id_generator is passed in.
+        # Since XBlock 2.0, we grab it from the runtime.
+        #
+        # TODO: Once we decide to drop support for versions prior to
+        # XBlock 2 (i.e. Open edX releases before Redwood), we can
+        # drop id_generator from the method signature, and always rely
+        # on runtime.id_generator.
+        if not id_generator:
+            id_generator = runtime.id_generator
+
         if 'filename' in node.attrib:
             # Read xml content from file.
             url_name = node.get('url_name', node.get('slug'))
diff --git a/requirements/base.txt b/requirements/base.txt
index 94a47cc..86f2dd4 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -17,10 +17,10 @@ python-novaclient>=7.1.2,<16
 tenacity>=6.2,<8
 
 # for hastexo_guacamole_client
-django<=4.2.8
+django<=4.2.14
 channels<=4.0.0
 daphne<=4.0.0
 twisted<24 # drop this restriction once we drop Python 3.8 and 3.9 support
-mysqlclient<=2.2.1  # keep in sync with edx-platform
+mysqlclient<=2.2.4  # keep in sync with edx-platform
 jsonfield>=3.1.0,<4   # keep in sync with edx-platform
 pyguacamole>=0.11
diff --git a/requirements/test.txt b/requirements/test.txt
index 7d83dc4..100b35c 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -1,7 +1,8 @@
 -r base.txt
 
 # These package versions must be kept in sync with edx-platform as much as possible.
-xblock-utils<=3.0.0
+xblock-sdk<0.9.0;python_version<"3.9"
+xblock-sdk;python_version>="3.9"
 six==1.16.0
 lazy<=1.5
 django-pyfs==3.1.0
diff --git a/tox.ini b/tox.ini
index 9a79071..814fc52 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,11 +1,9 @@
 [tox]
-envlist = flake8,pipdeptree{,-requirements},py{38,39,310,311,312}-xblock{17,18,19}-celery5
+envlist = flake8,pipdeptree{,-requirements},py38-xblock18-celery5,py{311,312}-xblock{40}-celery5
 
 [gh-actions]
 python =
     3.8: flake8,pipdeptree,pipdeptree-requirements,py38
-    3.9: flake8,pipdeptree,pipdeptree-requirements,py39
-    3.10: flake8,pipdeptree,pipdeptree-requirements,py310
     3.11: flake8,pipdeptree,pipdeptree-requirements,py311
     3.12: flake8,pipdeptree,pipdeptree-requirements,py312
 
@@ -29,10 +27,8 @@ exclude_lines =
 deps =
     -rrequirements/setup.txt
     -rrequirements/test.txt
-    xblock-sdk<0.9.0
-    xblock17: XBlock>=1.7,<1.8
     xblock18: XBlock>=1.8,<1.9
-    xblock19: XBlock>=1.9,<2
+    xblock40: XBlock>=4.0,<5
     celery5: celery>=5,<6
 commands =
     python run_tests.py []