diff --git a/docs/requirements.txt b/docs/requirements.txt
index 7a66767..f90ed66 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -4,7 +4,7 @@ chardet>=4.0.0
 click>=8.0.0
 codecov>=2.1.13
 coverage>=5.5
-future>=0.18.2
+future>=0.18.3
 idna>=2.10
 Jinja2>=3.1.5
 joblib>=1.5.3