diff --git a/docs/requirements_readthedocs.txt b/docs/requirements_readthedocs.txt
index c20cf7a0..74f7152b 100644
--- a/docs/requirements_readthedocs.txt
+++ b/docs/requirements_readthedocs.txt
@@ -1,3 +1,4 @@
 sphinx==5.0.2
 sphinxcontrib-bibtex
-tensorflow==2.9.0
\ No newline at end of file
+tensorflow==2.9.0
+keras>=3.12.0 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file