diff --git a/contrib/libcbor/doc/source/requirements.txt b/contrib/libcbor/doc/source/requirements.txt
index 461bb7e804d23..e00d1e681212a 100644
--- a/contrib/libcbor/doc/source/requirements.txt
+++ b/contrib/libcbor/doc/source/requirements.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.12
 argh==0.26.2
-Babel==2.8.0
+Babel==2.9.1
 breathe==4.14.1
 certifi==2019.11.28
 chardet==3.0.4