diff --git a/setup.cfg b/setup.cfg
index a6ce373..aa4dcc0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -34,7 +34,7 @@ test =
     pifpaf>=0.23
     mock>=1.2  # BSD
 doc =
-    sphinx!=1.2.0,!=1.3b1,>=1.1.2
+    sphinx!=1.2.0,!=1.3b1,!=1.6.1,>=1.1.2
     oslosphinx>=2.5.0 # Apache-2.0
 
 [entry_points]