diff --git a/constraints.txt b/constraints.txt
index 8234cb229..98ceea1ae 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -194,7 +194,7 @@ sphinxcontrib-applehelp==1.0.4
     # via sphinx
 sphinxcontrib-devhelp==1.0.2
     # via sphinx
-sphinxcontrib-htmlhelp==2.0.1
+sphinxcontrib-htmlhelp==2.0.4
     # via sphinx
 sphinxcontrib-jsmath==1.0.1
     # via sphinx