diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a96af8d9..b016d882 100755
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@v3
     - name: Install system
       run: |
-        sudo apt-get -y install python3-scipy python3-setuptools python3-nose cython3 python3-matplotlib python3-lxml
+        sudo apt-get -y install python3-scipy python3-setuptools python3-nose cython3 python3-matplotlib
         sudo apt-get -y install cmake liblapack-dev libsuitesparse-dev libhypre-dev
         sudo cp -v /usr/lib/x86_64-linux-gnu/libblas.so /usr/lib/x86_64-linux-gnu/libblas_OPENMP.so
     - name: Install superlu
diff --git a/CHANGELOG b/CHANGELOG
index 998bc3f5..51f4f96a 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,8 +1,12 @@
 --- CHANGELOG ---
+--- PyFMI-NEXT_VERSION ---
+    * Removed utilities related to the obsolete FMUX model interface.
+    * Removed no longer required dependency on lxml.
+
 --- PyFMI-2.11.0 ---
     * Refactored result handling for dynamic_diagnostics. It is now possible use dynamic_diagnostics with a custom result handler.
     * Migrated some diagnostics functionality into a new file: src/common/diagnostics.py. This should be seamless.
-    * pyfmi.common.diagnostics_prefix has been moved to pyfmi.common.diagnostics as DIAGNOSTICS_PREFIX. 
+    * pyfmi.common.diagnostics_prefix has been moved to pyfmi.common.diagnostics as DIAGNOSTICS_PREFIX.
 
 --- PyFMI-2.10.4 ---
     * Added 'result_handling' = None as option, deprecated 'none'.
@@ -49,7 +53,7 @@
 --- PyFMI-2.9.7 ---
     * Added an argument to ResultDymolaBinary to allow for reading updated
       data from the loaded file.
-    * Added option "synchronize_simulation" to allow for synchronizing 
+    * Added option "synchronize_simulation" to allow for synchronizing
       simulation with (scaled) real-time.
 
 --- PyFMI-2.9.6 ---
diff --git a/setup.cfg b/setup.cfg
index fbf495e8..c4a18de3 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -9,6 +9,5 @@ install_requires =
     scipy >= 1.3
     cython >= 0.29.13
     nose >= 1.3.7
-    lxml >= 4.4.1
     matplotlib > 3
     assimulo >= 3.2
\ No newline at end of file
diff --git a/src/pyfmi/__init__.py b/src/pyfmi/__init__.py
index 77a97ac9..6dee1238 100644
--- a/src/pyfmi/__init__.py
+++ b/src/pyfmi/__init__.py
@@ -28,6 +28,8 @@
 from .fmi_extended import FMUModelME1Extended
 import numpy as N
 import os.path
+import sys
+import time
 
 int = N.int32
 N.int = N.int32
@@ -58,7 +60,6 @@ def wrap(func):
 
 
 def check_packages():
-    import sys, time
     le=30
     le_short=15
     startstr = "Performing pyfmi package check"
@@ -102,7 +103,7 @@ def check_packages():
         "%s %s" % (("-"*len(modstr)).ljust(le), ("-"*len(verstr)).ljust(le)))
     sys.stdout.write("\n")
     
-    packages=["assimulo", "Cython", "lxml", "matplotlib", "numpy", "scipy", "wxPython"]
+    packages=["assimulo", "Cython", "matplotlib", "numpy", "scipy", "wxPython"]
     
     if platform == "win32":
         packages.append("pyreadline")
@@ -120,9 +121,6 @@ def check_packages():
             try:
                 if package == "pyreadline":
                     vers = mod.release.version
-                elif package == "lxml":
-                    from lxml import etree
-                    vers = etree.__version__
                 else:
                     vers = mod.__version__
             except AttributeError: