diff --git a/constraints.txt b/constraints.txt
index 4940cd460..fe925f3c7 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -4,7 +4,7 @@
 #
 #    pip-compile --extra=async --extra=cli --extra=docs --extra=opt --extra=test --output-file=constraints.txt --strip-extras
 #
-alabaster==0.7.16
+alabaster==1.0.0
     # via sphinx
 asttokens==2.4.1
     # via stack-data