diff --git a/docs/requirements_docs.txt b/docs/requirements_docs.txt
index e80e56d..a21a20a 100644
--- a/docs/requirements_docs.txt
+++ b/docs/requirements_docs.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.12
 asn1crypto==0.24.0
-Babel==2.7.0
+Babel==2.9.1
 certifi==2019.6.16
 cffi==1.12.3
 chardet==3.0.4
diff --git a/requirements_docs.txt b/requirements_docs.txt
index 93244c1..6d87239 100644
--- a/requirements_docs.txt
+++ b/requirements_docs.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.12
 asn1crypto==0.24.0
-Babel==2.7.0
+Babel==2.9.1
 certifi==2019.6.16
 cffi==1.12.3
 chardet==3.0.4