diff --git a/tox.ini b/tox.ini
index 1620c18..104b302 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,6 +21,9 @@ commands =
   nbqa ruff --fix docs/
 
 [testenv:lint]
+image-tester-commit = 7ae965ccf21c39e5170334ec7f4882756883860a
+deps = 
+  git+https://github.com/Qiskit/documentation.git@{[testenv:lint]image-tester-commit}\#egg=sphinx-alt-text-validator&subdirectory=scripts/image-tester
 basepython = python3.10
 extras =
   lint
@@ -31,6 +34,7 @@ commands =
   nbqa ruff docs/
   mypy qiskit_addon_mpf/
   pylint -rn qiskit_addon_mpf/ test/
+  sphinx-alt-text-validator -f qiskit_addon_mpf -s qiskit_addon_mpf/backends/tenpy_layers/__init__.py qiskit_addon_mpf/backends/quimb_layers/__init__.py
   nbqa pylint -rn docs/
   typos
   reno lint