diff --git a/contrib/libcbor/doc/source/requirements.txt b/contrib/libcbor/doc/source/requirements.txt
index b27e44033a89..18d9fe5a1ee0 100644
--- a/contrib/libcbor/doc/source/requirements.txt
+++ b/contrib/libcbor/doc/source/requirements.txt
@@ -26,6 +26,6 @@ sphinxcontrib-htmlhelp==2.0.4
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.6
 sphinxcontrib-serializinghtml==1.1.9
-tornado==6.4.1
+tornado==6.4.2
 urllib3==2.2.2
 zipp==3.17.0