diff --git a/requirements-docs.txt b/requirements-docs.txt
index 342ecb2..a7a6c41 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -2,5 +2,5 @@
 -r requirements.txt
 
 # documentation generation support
-Sphinx==3.0.1
+Sphinx==3.0.3
 numpydoc==0.9.2