diff --git a/reference/tags/assert_supports-rolling-upgrade.rst b/reference/tags/assert_supports-rolling-upgrade.rst
index b8b7341cc..41c5fea17 100644
--- a/reference/tags/assert_supports-rolling-upgrade.rst
+++ b/reference/tags/assert_supports-rolling-upgrade.rst
@@ -45,7 +45,7 @@ Requirements
   out the supported configuration(s) that are expected to work, unless
   there are no such caveats. This does not require complete
   elimination of downtime during upgrades, but rather reducing the
-  scope from "all services" to "some services at a time. In other
+  scope from "all services" to "some services at a time." In other
   words, "restarting all API services together" is a reasonable restriction.
 * Full stack integration testing with services arranged in a
   mid-upgrade manner is performed on every proposed commit to validate