diff --git a/doc/requirements.in b/doc/requirements.in
index d2c72b5f7..677b6c389 100644
--- a/doc/requirements.in
+++ b/doc/requirements.in
@@ -5,4 +5,4 @@ gitpython==3.1.43
 numpydoc==1.8.0
 sphinx==7.3.7
 sphinx-rtd-theme==2.0.0
-sphinxcontrib-bibtex==2.6.2
+sphinxcontrib-bibtex==2.6.3
diff --git a/doc/requirements.txt b/doc/requirements.txt
index f4efc05f9..f5a203bf6 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -68,7 +68,7 @@ sphinx-rtd-theme==2.0.0
     # via -r doc/requirements.in
 sphinxcontrib-applehelp==1.0.4
     # via sphinx
-sphinxcontrib-bibtex==2.6.2
+sphinxcontrib-bibtex==2.6.3
     # via -r doc/requirements.in
 sphinxcontrib-devhelp==1.0.2
     # via sphinx