diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f3a10cc136e37947d7307b05f38720a37a8af1b7..694cf47bdcac8f6eaee541c471b13f03d1ef429b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -21,7 +21,7 @@ tests-and-coverage:
     - py.test -v -n $NUM_CORES --cov-report html --cov-report term --cov=. -m "not longrun"
   tags:
     - docker
-    - cuda
+    - cuda11
     - AVX
   artifacts:
     when: always
@@ -43,7 +43,7 @@ test-longrun:
     - py.test -v -n $NUM_CORES --cov-report html --cov-report term --cov=.
   tags:
     - docker
-    - cuda
+    - cuda11
     - AVX
   artifacts:
     paths:
@@ -79,7 +79,7 @@ ubuntu:
     - pytest-3 -v -m "not longrun"
   tags:
     - docker
-    - cuda
+    - cuda11
 
 minimal-conda:
   stage: test
@@ -124,7 +124,7 @@ pycodegen-integration:
     - make -j $NUM_CORES
   tags:
     - docker
-    - cuda
+    - cuda11
     - AVX
 
 # -------------------- Linter & Documentation --------------------------------------------------------------------------
@@ -140,7 +140,7 @@ flake8-lint:
     - flake8 lbmpy
   tags:
     - docker
-    - cuda
+    - cuda11
 
 
 build-documentation:
@@ -153,7 +153,7 @@ build-documentation:
     - sphinx-build -W -b html doc  html_doc
   tags:
     - docker
-    - cuda
+    - cuda11
   artifacts:
     paths:
       - html_doc
diff --git a/README.md b/README.md
index 617a9ce3b4779c883546077b478d019172665064..cd7fce1e2c5f58943c8957d31f57191632575c1b 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,9 @@ lbmpy
 =====
 
 [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/mabau/lbmpy/master?filepath=doc%2Fnotebooks)
-[![Docs](https://img.shields.io/badge/read-the_docs-brightgreen.svg)](http://pycodegen.pages.walberla.net/lbmpy)
+[![Docs](https://img.shields.io/badge/read-the_docs-brightgreen.svg)](http://pycodegen.pages.i10git.cs.fau.de/lbmpy)
 [![pipeline status](https://i10git.cs.fau.de/pycodegen/lbmpy/badges/master/pipeline.svg)](https://i10git.cs.fau.de/pycodegen/lbmpy/commits/master)
-[![coverage report](https://i10git.cs.fau.de/pycodegen/lbmpy/badges/master/coverage.svg)](http://pycodegen.pages.walberla.net/lbmpy/coverage_report)
+[![coverage report](https://i10git.cs.fau.de/pycodegen/lbmpy/badges/master/coverage.svg)](http://pycodegen.pages.i10git.cs.fau.de/lbmpy/coverage_report)
 
 
 Run fast fluid simulations based on the lattice Boltzmann method in Python on CPUs and GPUs.
@@ -39,7 +39,7 @@ pip install lbmpy[interactive]
 Without `[interactive]` you get a minimal version with very little dependencies.
 
 All options:
-- `gpu`: use this if nVidia GPU is available and CUDA is installed
+- `gpu`: use this if a NVIDIA GPU is available and CUDA is installed
 - `opencl`: use this to enable the target `opencl` (execution using OpenCL)
 - `alltrafos`: pulls in additional dependencies for loop simplification e.g. libisl
 - `interactive`: installs dependencies to work in Jupyter including image I/O, plotting etc.
@@ -53,5 +53,5 @@ pip install lbmpy[interactive,gpu,doc]
 Documentation
 -------------
 
-Read the docs [here](http://pycodegen.pages.walberla.net/lbmpy) and
+Read the docs [here](http://pycodegen.pages.i10git.cs.fau.de/lbmpy) and
 check out the Jupyter notebooks in `doc/notebooks`. 
diff --git a/conftest.py b/conftest.py
index 3ae58d02970293604366736556a8e85aed0e061a..2f4100ef2d97f6dc10b736bdaac96f0367669fe4 100644
--- a/conftest.py
+++ b/conftest.py
@@ -21,6 +21,12 @@ from lbmpy.phasefield.simplex_projection import simplex_projection_2d  # NOQA
 SCRIPT_FOLDER = os.path.dirname(os.path.realpath(__file__))
 sys.path.insert(0, os.path.abspath('lbmpy'))
 
+# the Ubuntu pipeline uses an older version of pytest which uses deprecated functionality.
+# This leads to many warinings in the test and coverage pipeline.
+pytest_numeric_version = [int(x, 10) for x in pytest.__version__.split('.')]
+pytest_numeric_version.reverse()
+pytest_version = sum(x * (100 ** i) for i, x in enumerate(pytest_numeric_version))
+
 
 def add_path_to_ignore(path):
     if not os.path.exists(path):
@@ -121,7 +127,10 @@ class IPyNbFile(pytest.File):
             warnings.filterwarnings("ignore", "IPython.core.inputsplitter is deprecated")
             notebook = nbformat.read(notebook_contents, 4)
             code, _ = exporter.from_notebook_node(notebook)
-            yield IPyNbTest(self.name, self, code)
+            if pytest_version >= 50403:
+                yield IPyNbTest.from_parent(name=self.name, parent=self, code=code)
+            else:
+                yield IPyNbTest(self.name, self, code)
 
     def teardown(self):
         pass
@@ -130,4 +139,7 @@ class IPyNbFile(pytest.File):
 def pytest_collect_file(path, parent):
     glob_exprs = ["*demo*.ipynb", "*tutorial*.ipynb", "test_*.ipynb"]
     if any(path.fnmatch(g) for g in glob_exprs):
-        return IPyNbFile(path, parent)
+        if pytest_version >= 50403:
+            return IPyNbFile.from_parent(fspath=path, parent=parent)
+        else:
+            return IPyNbFile(path, parent)
diff --git a/lbmpy/moments.py b/lbmpy/moments.py
index 84c25c4049e3c41543c98231a47850a96b2b8390..13a84ce62c52cff5ac155c96ec703dd20f04d8fa 100644
--- a/lbmpy/moments.py
+++ b/lbmpy/moments.py
@@ -456,7 +456,7 @@ def extract_monomials(sequence_of_polynomials, dim=3):
     >>> extract_monomials([x**2 + y**2 + y, y + y**2])
     {(0, 2, 0), (0, 1, 0), (2, 0, 0)}
     >>> extract_monomials([x**2 + y**2 + y, y + y**2], dim=2)
-    {(0, 1), (2, 0), (0, 2)}
+    {(0, 1), (0, 2), (2, 0)}
     """
     monomials = set()
     for polynomial in sequence_of_polynomials:
@@ -479,8 +479,8 @@ def monomial_to_polynomial_transformation_matrix(monomials, polynomials):
     >>> mons = list(extract_monomials(polys, dim=2))
     >>> monomial_to_polynomial_transformation_matrix(mons, polys)
     Matrix([
-    [7,  3, 2],
-    [9, -5, 0]])
+    [ 3, 2, 7],
+    [-5, 0, 9]])
     """
     dim = len(monomials[0])
 
diff --git a/lbmpy_tests/test_srt_trt_simplifications.py b/lbmpy_tests/test_srt_trt_simplifications.py
index 0d154edab4b016b2510cb04770d7adcd8bc8fdb6..ad0a96247593198ceb2e0db1dd536b5d9f8c2b83 100644
--- a/lbmpy_tests/test_srt_trt_simplifications.py
+++ b/lbmpy_tests/test_srt_trt_simplifications.py
@@ -38,7 +38,7 @@ def test_simplifications_srt_d2q9_incompressible():
 def test_simplifications_srt_d2q9_compressible():
     omega = sp.symbols('omega')
     method = create_srt(get_stencil("D2Q9"), omega, compressible=True, equilibrium_order=2)
-    check_method(method, [53, 57, 1], [53, 41, 1])
+    check_method(method, [53, 58, 1], [53, 42, 1])
 
 
 def test_simplifications_trt_d2q9_incompressible():
@@ -50,7 +50,7 @@ def test_simplifications_trt_d2q9_incompressible():
 def test_simplifications_trt_d2q9_compressible():
     o1, o2 = sp.symbols("omega_1 omega_2")
     method = create_trt(get_stencil("D2Q9"), o1, o2, compressible=True)
-    check_method(method, [77, 105, 1], [65, 55, 1])
+    check_method(method, [77, 106, 1], [65, 56, 1])
 
 
 def test_simplifications_trt_d3q19_force_incompressible():
@@ -64,4 +64,4 @@ def test_simplifications_trt_d3q19_force_compressible():
     o1, o2 = sp.symbols("omega_1 omega_2")
     force_model = Guo([sp.Rational(1, 3), sp.Rational(1, 2), sp.Rational(1, 5)])
     method = create_trt_with_magic_number(get_stencil("D3Q19"), o1, compressible=False, force_model=force_model)
-    check_method(method, [270, 283, 1], [243, 177, 1])
+    check_method(method, [270, 284, 1], [243, 178, 1])