diff --git a/requirements.txt b/requirements.txt
index 83bb53bf8c93fb1db9396cc9f1c4b24f4901b91c..5e2e3478a9c1d974fc92a40993834cc03b7fd5c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,5 @@ numpy>=1.21.0 # BSD
 nptyping>=2.3.0 # MIT
 matplotlib>=3.5.0 # PSF
 pyDeprecate>=0.3.0 # MIT
-PyTango # GNU LGPL v3
+# commented out until https://gitlab.com/tango-controls/pytango/-/issues/468 is resolved
+# PyTango>=9.3.5 # GNU LGPL v3
diff --git a/tox.ini b/tox.ini
index c340ad3df01be8fcabc18a8f217e1d6f1e2d7b89..a358069440d42dfbfe9790a122a5cca328be7acf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,6 +14,10 @@ setenv =
 deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/test-requirements.txt
+commands_pre =
+    # required until https://gitlab.com/tango-controls/pytango/-/issues/468 is resolved
+    pip install 'numpy>=1.21.0'
+    pip install --no-cache 'PyTango>=9.3.5'
 commands =
     {envpython} --version
     stestr run {posargs}